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

guinea \guin"ea\ gi^n"-e, n.
   1. a district on the west coast of africa formerly noted for
      its export of gold and slaves after which the guinea
      fowl, guinea grass, guinea peach, etc., are named.
      1913 webster

   2. a gold coin of england current for twenty-one shillings
      sterling, or about five dollars, but not coined since the
      issue of sovereigns in 1817.
      1913 webster

            the guinea, so called from the guinea gold out of
            which it
            was first struck, was proclaimed in 1663, and to go
            for twenty shillings; but it never went for less
            than twenty-one shillings.            --pinkerton.
      1913 webster

   guinea corn. bot. see durra.

   guinea current geog., a current in the atlantic ocean
      setting southwardly into the bay of benin on the coast of
      guinea.

   guinea dropper one who cheats by dropping counterfeit
      guineas. obs. --gay.

   guinea fowl, guinea hen zool., an african gallinaceous
      bird, of the genus numida, allied to the pheasants. the
      common domesticated species numida meleagris, has a
      colored fleshy horn on each aide of the head, and is of a
      dark gray color, variegated with small white spots. the
      crested guinea fowl numida cristata is a finer
      species.

   guinea grains bot., grains of paradise, or amomum. see
      amomum.

   guinea grass bot., a tall strong forage grass panicum
      jumentorum introduced. from africa into the west indies
      and southern united states.

   guinea-hen flower bot., a liliaceous flower fritillaria
      meleagris with petals spotted like the feathers of the
      guinea hen.

   guinea peach. see under peach.

   guinea pepper bot., the pods of the xylopia aromatica,
      a tree of the order anonaceae, found in tropical west
      africa. they are also sold under the name of piper
      aethiopicum.

   guinea plum bot., the fruit of parinarium excelsum, a
      large west african tree of the order chrysobalaneae,
      having a scarcely edible fruit somewhat resembling a plum,
      which is also called gray plum and rough-skin plum.

   guinea worm zool., a long and slender african nematoid
      worm filaria medinensis of a white color. it lives in
      the cellular tissue of man, beneath the skin, and produces
      painful sores.
      1913 webster
see also:
guinea corn durra guinea current guinea dropper guinea fowl guinea hen 
numida numida meleagris numida cristata guinea grains amomum 
guinea grass panicum jumentorum guinea-hen flower fritillaria meleagris guinea peach 
peach guinea pepper xylopia aromatica anonaceae piper aethiopicum 
guinea plum parinarium excelsum chrysobalaneae gray plum rough-skin plum 
guinea worm filaria medinensis 

[2] : WordNet (r) 2.0

guinea
     n 1: a former british gold coin worth 21 shillings
     2: offensive terms for a person of italian descent syn: wop,
         dago, greaseball
     3: a republic in eastern africa on the atlantic; formerly a
        french colony; achieved independence from france in 1958
        syn: republic of guinea, french guinea
     4: a west african bird having dark plumage mottled with white;
        native to africa but raised for food in many parts of the
        world syn: guinea fowl, numida meleagris
see also:
wop dago greaseball republic of guinea french guinea guinea fowl 
numida meleagris 

[3] : Moby Thesaurus II by Grady Ward, 1.0

53 moby thesaurus words for "guinea":
   bawbee, coin, crown, dollar, double eagle, doubloon, ducat, eagle,
   farthing, five-dollar gold piece, fiver, florin, fourpence,
   fourpenny, gold piece, groat, half crown, half dollar, half eagle,
   halfpenny, hard money, mag, meg, mite, moidore, monkey, napoleon,
   new pence, np, p, pence, penny, piece, piece of money,
   piece of silver, pony, pound, pound sovereign, quid, roll of coins,
   rouleau, shilling, sixpence, sovereign, specie,
   ten-dollar gold piece, tenner, threepence, threepenny bit,
   thrippence, tuppence, twenty-dollar gold piece, twopence

Guinea >> G Words
Guinea, definition of term: Guinea
guinea_pag1.html

Guinea Worm >> G Words
Guinea Worm, definition of term: Guinea Worm
guinea+worm_pag1.html

Guinea Pig >> G Words
Guinea Pig, definition of term: Guinea Pig
guinea+pig_pag1.html

Guinea Pepper >> G Words
Guinea Pepper, definition of term: Guinea Pepper
guinea+pepper_pag1.html

Guinea Hen >> G Words
Guinea Hen, definition of term: Guinea Hen
guinea+hen_pag1.html