[1] : The Collaborative International Dictionary of English v.0.48

jack \jack\ ja^k, n. f. jacques james, l. jacobus, gr. ?,
   heb. ya 'aq=ob jacob; prop., seizing by the heel; hence, a
   supplanter. cf. jacobite, jockey.
   1913 webster
   1. a familiar nickname of, or substitute for, john.
      1913 webster

            you are john rugby, and you are jack rugby. --shak.
      1913 webster

   2. an impertinent or silly fellow; a simpleton; a boor; a
      clown; also, a servant; a rustic. "jack fool." --chaucer.
      1913 webster

            since every jack became a gentleman,
            there 's many a gentle person made a jack. --shak.
      1913 webster

   3. a popular colloquial name for a sailor; -- called also
      jack tar, and jack afloat.
      1913 webster

   4. a mechanical contrivance, an auxiliary machine, or a
      subordinate part of a machine, rendering convenient
      service, and often supplying the place of a boy or
      attendant who was commonly called jack; as:
      a a device to pull off boots.
      b a sawhorse or sawbuck.
      c a machine or contrivance for turning a spit; a smoke
          jack, or kitchen jack.
      b mining a wooden wedge for separating rocks rent by
          blasting.
      e knitting machine a lever for depressing the sinkers
          which push the loops down on the needles.
      f warping machine a grating to separate and guide the
          threads; a heck box.
      g spinning a machine for twisting the sliver as it
          leaves the carding machine.
      h a compact, portable machine for planing metal.
      i a machine for slicking or pebbling leather.
      k a system of gearing driven by a horse power, for
          multiplying speed.
      l a hood or other device placed over a chimney or vent
          pipe, to prevent a back draught.
      m in the harpsichord, an intermediate piece
          communicating the action of the key to the quill; --
          called also hopper.
      n in hunting, the pan or frame holding the fuel of the
          torch used to attract game at night; also, the light
          itself. --c. hallock.
          1913 webster

   5. a portable machine variously constructed, for exerting
      great pressure, or lifting or moving a heavy body such as
      an automobile through a small distance. it consists of a
      lever, screw, rack and pinion, hydraulic press, or any
      simple combination of mechanical powers, working in a
      compact pedestal or support and operated by a lever,
      crank, capstan bar, etc. the name is often given to a
      jackscrew, which is a kind of jack.
      1913 webster

   6. the small bowl used as a mark in the game of bowls.
      --shak.
      1913 webster

            like an uninstructed bowler who thinks to attain the
            jack by delivering his bowl straight forward upon
            it.                                   --sir w.
                                                  scott.
      1913 webster

   7. the male of certain animals, as of the ass.
      1913 webster

   8. zool.
      a a young pike; a pickerel.
      b the jurel.
      c a large, california rock fish sebastodes
          paucispinus; -- called also boccaccio, and
          m'erou.
      d the wall-eyed pike.
          1913 webster

   9. a drinking measure holding half a pint; also, one holding
      a quarter of a pint. prov. eng. --halliwell.
      1913 webster

   10. naut.
       a a flag, containing only the union, without the fly,
           usually hoisted on a jack staff at the bowsprit cap;
           -- called also union jack. the american jack is a
           small blue flag, with a star for each state.
       b a bar of iron athwart ships at a topgallant masthead,
           to support a royal mast, and give spread to the royal
           shrouds; -- called also jack crosstree. --r. h.
           dana, jr.
           1913 webster

   11. the knave of a suit of playing cards.

   12. pl. a game played with small metallic, with
       tetrahedrally oriented spikes objects the jacks1950+,
       formerly jackstones that are tossed, caught, picked up,
       and arranged on a horizontal surface in various patterns;
       in the modern american game, the movements are
       accompanied by tossing or bouncing a rubber ball on the
       horizontal surface supporting the jacks. same as
       jackstones.
       pjc

   13. money. slang
       pjc

   14. apple jack.
       pjc

   15. brandy.
       pjc

   note: jack is used adjectively in various senses. it
         sometimes designates something cut short or diminished
         in size; as, a jack timber; a jack rafter; a jack arch,
         etc.
         1913 webster

   jack arch, an arch of the thickness of one brick.

   jack back brewing  malt vinegar manuf., a cistern which
      receives the wort. see under 1st back.

   jack block naut., a block fixed in the topgallant or
      royal rigging, used for raising and lowering light masts
      and spars.

   jack boots, boots reaching above the knee; -- worn in the
      17 century by soldiers; afterwards by fishermen, etc.

   jack crosstree. naut. see 10, b, above.

   jack curlew zool., the whimbrel.

   jack frame. cotton spinning see 4
       g, above.

   jack frost, frost or cold weather personified as a
      mischievous person.

   jack hare, a male hare. --cowper.

   jack lamp, a lamp for still hunting and camp use. see def.
      4
       n., above.

   jack plane, a joiner's plane used for coarse work.

   jack post, one of the posts which support the crank shaft
      of a deep-well-boring apparatus.

   jack pot poker playing, the name given to the stakes,
      contributions to which are made by each player
      successively, till such a hand is turned as shall take the
      "pot," which is the sum total of all the bets. see also
      jackpot.

   jack rabbit zool., any one of several species of large
      american hares, having very large ears and long legs. the
      california species lepus californicus, and that of
      texas and new mexico lepus callotis, have the tail
      black above, and the ears black at the tip. they do not
      become white in winter. the more northern prairie hare
      lepus campestris has the upper side of the tail white,
      and in winter its fur becomes nearly white.

   jack rafter arch., in england, one of the shorter rafters
      used in constructing a hip or valley roof; in the united
      states, any secondary roof timber, as the common rafters
      resting on purlins in a trussed roof; also, one of the
      pieces simulating extended rafters, used under the eaves
      in some styles of building.

   jack salmon zool., the wall-eyed pike, or glasseye.

   jack sauce, an impudent fellow. colloq.  obs.

   jack shaft mach., the first intermediate shaft, in a
      factory or mill, which receives power, through belts or
      gearing, from a prime mover, and transmits it, by the same
      means, to other intermediate shafts or to a line shaft.

   jack sinker knitting mach., a thin iron plate operated by
      the jack to depress the loop of thread between two
      needles.

   jack snipe. zool. see in the vocabulary.

   jack staff naut., a staff fixed on the bowsprit cap, upon
      which the jack is hoisted.

   jack timber arch., any timber, as a rafter, rib, or
      studding, which, being intercepted, is shorter than the
      others.

   jack towel, a towel hung on a roller for common use.

   jack truss arch., in a hip roof, a minor truss used where
      the roof has not its full section.

   jack tree. bot. see 1st jack, n.

   jack yard naut., a short spar to extend a topsail beyond
      the gaff.
      1913 webster

   blue jack, blue vitriol; sulphate of copper.

   hydraulic jack, a jack used for lifting, pulling, or
      forcing, consisting of a compact portable hydrostatic
      press, with its pump and a reservoir containing a supply
      of liquid, as oil.

   jack-at-a-pinch.
       a one called upon to take the place of another in an
           emergency.
       b an itinerant parson who conducts an occasional
           service for a fee.

   jack-at-all-trades, one who can turn his hand to any kind
      of work.

   jack-by-the-hedge bot., a plant of the genus erysimum
      erysimum alliaria, or alliaria officinalis, which
      grows under hedges. it bears a white flower and has a
      taste not unlike garlic. called also, in england,
      sauce-alone. --eng. cyc.

   jack-in-office, an insolent fellow in authority. --wolcott.

   jack-in-the-bush bot., a tropical shrub with red fruit
      cordia cylindrostachya.

   jack-in-the-green, a chimney sweep inclosed in a framework
      of boughs, carried in mayday processions.

   jack-of-the-buttery bot., the stonecrop sedum acre.
      

   jack-of-the-clock, a figure, usually of a man, on old
      clocks, which struck the time on the bell.

   jack-on-both-sides, one who is or tries to be neutral.

   jack-out-of-office, one who has been in office and is
      turned out. --shak.

   jack the giant killer, the hero of a well-known nursery
      story.

   yellow jack naut., the yellow fever; also, the quarantine
      flag. see yellow flag, under flag.
      1913 webster
see also:
jacobite jockey jack tar jack afloat hopper sebastodes paucispinus 
boccaccio m'erou union jack jack crosstree jackstones 
jack arch jack back back jack block jack boots 
jack crosstree jack curlew jack frame jack frost jack hare 
jack lamp jack plane jack post jack pot jackpot 
jack rabbit lepus californicus lepus callotis lepus campestris jack rafter 
jack salmon jack sauce jack shaft jack sinker jack snipe 
jack staff jack timber jack towel jack truss jack tree 
jack jack yard blue jack hydraulic jack jack-at-a-pinch 
jack-at-all-trades jack-by-the-hedge erysimum erysimum alliaria alliaria officinalis 
sauce-alone jack-in-office jack-in-the-bush cordia cylindrostachya jack-in-the-green 
jack-of-the-buttery sedum acre jack-of-the-clock jack-on-both-sides jack-out-of-office 
jack the giant killer yellow jack yellow flag flag 

[2] : The Collaborative International Dictionary of English v.0.48

quarantine \quar"antine\, n. f. quarantaine, of. quaranteine,
   fr. f. quarante forty, l. quadraginta, akin to quattuor four,
   and e. four: cf. it. quarantina, quarentine. see four, and
   cf. quadragesima.
   1. a space of forty days; -- used of lent.
      1913 webster

   2. specifically, the term, originally of forty days, during
      which a ship arriving in port, and suspected of being
      infected a malignant contagious disease, is obliged to
      forbear all intercourse with the shore; hence, such
      restraint or inhibition of intercourse; also, the place
      where infected or prohibited vessels are stationed.
      1913 webster

   note: quarantine is now applied also to any forced stoppage
         of travel or communication on account of malignant
         contagious disease, on land as well as by sea.
         1913 webster

   3. eng. law the period of forty days during which the widow
      had the privilege of remaining in the mansion house of
      which her husband died seized.
      1913 webster

   quarantine flag, a yellow flag hoisted at the fore of a
      vessel or hung from a building, to give warning of an
      infectious disease; -- called also the yellow jack, and
      yellow flag.
      1913 webster
see also:
four quadragesima quarantine flag yellow jack yellow flag 

[3] : The Collaborative International Dictionary of English v.0.48

yellow \yel"low\ ye^l"l-o, a. compar. yellower
   ye^l"l-o~er; superl. yellowest. oe. yelow,
   yelwe, yoghelow, yogheoluw, from as. geolu; akin to d.
   geel, os.  ohg. gelo, g. gelb, icel. gulr, sw. gul, dan.
   guul, l. helvus light bay, gr. chlo`n young verdure, chlwro`s
   greenish yellow, skr. hari tawny, yellowish. root49. cf.
   chlorine, gall a bitter liquid, gold, yolk.
   1. being of a bright saffronlike color; of the color of gold
      or brass; having the hue of that part of the rainbow, or
      of the solar spectrum, which is between the orange and the
      green.
      1913 webster

            her yellow hair was browded braided in a tress.
                                                  --chaucer.
      1913 webster

            a sweaty reaper from his tillage brought
            first fruits, the green ear and the yellow sheaf.
                                                  --milton.
      1913 webster

            the line of yellow light dies fast away. --keble.
      1913 webster

   2. cowardly; hence, dishonorable; mean; contemptible; as, he
      has a yellow streak. slang
      webster 1913 suppl.

   3. sensational; -- said of some newspapers, their makers,
      etc.; as, yellow journal, journalism, etc. colloq.
      webster 1913 suppl.

   yellow atrophy med., a fatal affection of the liver, in
      which it undergoes fatty degeneration, and becomes rapidly
      smaller and of a deep yellow tinge. the marked symptoms
      are black vomit, delirium, convulsions, coma, and
      jaundice.

   yellow bark, calisaya bark.

   yellow bass zool., a north american fresh-water bass
      morone interrupta native of the lower parts of the
      mississippi and its tributaries. it is yellow, with
      several more or less broken black stripes or bars. called
      also barfish.

   yellow berry. bot. same as persian berry, under
      persian.

   yellow boy, a gold coin, as a guinea. slang --arbuthnot.

   yellow brier. bot. see under brier.

   yellow bugle bot., a european labiate plant ajuga
      chamaepitys.

   yellow bunting zool., the european yellow-hammer.

   yellow cat zool., a yellow catfish; especially, the
      bashaw.

   yellow copperas min., a hydrous sulphate of iron; --
      called also copiapite.

   yellow copper ore, a sulphide of copper and iron; copper
      pyrites. see chalcopyrite.

   yellow cress bot., a yellow-flowered, cruciferous plant
      barbarea praecox, sometimes grown as a salad plant.

   yellow dock. bot. see the note under dock.

   yellow earth, a yellowish clay, colored by iron, sometimes
      used as a yellow pigment.

   yellow fever med., a malignant, contagious, febrile
      disease of warm climates, attended with jaundice,
      producing a yellow color of the skin, and with the black
      vomit. see black vomit, in the vocabulary.

   yellow flag, the quarantine flag. see under quarantine,
      and 3d flag.

   yellow jack.
      a the yellow fever. see under 2d jack.
      b the quarantine flag. see under quarantine.

   yellow jacket zool., any one of several species of
      american social wasps of the genus vespa, in which the
      color of the body is partly bright yellow. these wasps are
      noted for their irritability, and for their painful
      stings.

   yellow lead ore min., wulfenite.

   yellow lemur zool., the kinkajou.

   yellow macauco zool., the kinkajou.

   yellow mackerel zool., the jurel.

   yellow metal. same as muntz metal, under metal.

   yellow ocher min., an impure, earthy variety of brown
      iron ore, which is used as a pigment.

   yellow oxeye bot., a yellow-flowered plant
      chrysanthemum segetum closely related to the oxeye
      daisy.

   yellow perch zool., the common american perch. see
      perch.

   yellow pike zool., the wall-eye.

   yellow pine bot., any of several kinds of pine; also,
      their yellowish and generally durable timber. among the
      most common are valuable species are pinus mitis and
      pinus palustris of the eastern and southern states, and
      pinus ponderosa and pinus arizonica of the rocky
      mountains and pacific states.

   yellow plover zool., the golden plover.

   yellow precipitate med. chem., an oxide of mercury which
      is thrown down as an amorphous yellow powder on adding
      corrosive sublimate to limewater.

   yellow puccoon. bot. same as orangeroot.

   yellow rail zool., a small american rail porzana
      noveboracensis in which the lower parts are dull yellow,
      darkest on the breast. the back is streaked with brownish
      yellow and with black, and spotted with white. called also
      yellow crake.

   yellow rattle, yellow rocket. bot. see under rattle,
      and rocket.

   yellow sally zool., a greenish or yellowish european
      stone fly of the genus chloroperla; -- so called by
      anglers.

   yellow sculpin zool., the dragonet.

   yellow snake zool., a west indian boa chilobothrus
      inornatus common in jamaica. it becomes from eight to
      ten long. the body is yellowish or yellowish green, mixed
      with black, and anteriorly with black lines.

   yellow spot.
      a anat. a small yellowish spot with a central pit, the
          fovea centralis, in the center of the retina where
          vision is most accurate. see eye.
      b zool. a small american butterfly polites peckius
          of the skipper family. its wings are brownish, with a
          large, irregular, bright yellow spot on each of the
          hind wings, most conspicuous beneath. called also
          peck's skipper. see illust. under skipper, n., 5.
          

   yellow tit zool., any one of several species of crested
      titmice of the genus machlolophus, native of india. the
      predominating colors of the plumage are yellow and green.
      

   yellow viper zool., the fer-de-lance.

   yellow warbler zool., any one of several species of
      american warblers of the genus dendroica in which the
      predominant color is yellow, especially dendroica
      aestiva, which is a very abundant and familiar species;
      -- called also garden warbler, golden warbler, summer
      yellowbird, summer warbler, and yellow-poll warbler.
      

   yellow wash pharm., yellow oxide of mercury suspended in
      water, -- a mixture prepared by adding corrosive sublimate
      to limewater.

   yellow wren zool.
      a the european willow warbler.
      b the european wood warbler.
          1913 webster
see also:
yellower yellowest chlorine gall gold yolk 
yellow atrophy yellow bark yellow bass morone interrupta barfish 
yellow berry persian berry persian yellow boy yellow brier 
brier yellow bugle ajuga chamaepitys yellow bunting yellow cat 
yellow copperas copiapite yellow copper ore chalcopyrite yellow cress 
barbarea praecox yellow dock dock yellow earth yellow fever 
black vomit yellow flag quarantine flag yellow jack 
jack yellow jacket vespa yellow lead ore yellow lemur 
yellow macauco yellow mackerel yellow metal muntz metal metal 
yellow ocher yellow oxeye chrysanthemum segetum yellow perch perch 
yellow pike yellow pine pinus mitis pinus palustris pinus ponderosa 
pinus arizonica yellow plover yellow precipitate yellow puccoon orangeroot 
yellow rail porzana noveboracensis yellow crake yellow rattle yellow rocket 
rattle rocket yellow sally chloroperla yellow sculpin 
yellow snake chilobothrus inornatus yellow spot eye polites peckius 
peck's skipper skipper yellow tit machlolophus yellow viper 
yellow warbler dendroica dendroica aestiva garden warbler golden warbler 
summer yellowbird summer warbler yellow-poll warbler yellow wash yellow wren 

[4] : WordNet (r) 2.0

yellow jack
     n 1: caused by a flavivirus transmitted by a mosquito syn: yellow
          fever, black vomit
     2: yellow flag hoist on a ship in quarantine
     3: fish of western atlantic and gulf of mexico syn: caranx
        bartholomaei
see also:
yellow fever black vomit caranx bartholomaei 

Jack >> J Words
Jack, definition of term: Jack
jack_pag1.html

Jack Off >> J Words
Jack Off, definition of term: Jack Off
jack+off_pag1.html

Jack Plane >> J Words
Jack Plane, definition of term: Jack Plane
jack+plane_pag1.html

Jack Up >> J Words
Jack Up, definition of term: Jack Up
jack+up_pag1.html

Jack Rabbit >> J Words
Jack Rabbit, definition of term: Jack Rabbit
jack+rabbit_pag1.html

Jack Frost >> J Words
Jack Frost, definition of term: Jack Frost
jack+frost_pag1.html

Jack Tar >> J Words
Jack Tar, definition of term: Jack Tar
jack+tar_pag1.html

Jack Bean >> J Words
Jack Bean, definition of term: Jack Bean
jack+bean_pag1.html

Jack Salmon >> J Words
Jack Salmon, definition of term: Jack Salmon
jack+salmon_pag1.html

Black Jack >> B Words
Black Jack, definition of term: Black Jack
black+jack_pag1.html

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