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

imperial \impe"rial\, a. oe. emperial, of. emperial, f.
   imp'erial, fr. l. imperialis, fr. imperium command,
   sovereignty, empire. see empire.
   1. of or pertaining to an empire, or to an emperor; as, an
      imperial government; imperial authority or edict.
      1913 webster

            the last
            that wore the imperial diadem of rome. --shak.
      1913 webster

   2. belonging to, or suitable to, supreme authority, or one
      who wields it; royal; sovereign; supreme. "the imperial
      democracy of athens." --mitford.
      1913 webster

            who, as ulysses says, opinion crowns
            with an imperial voice.               --shak.
      1913 webster

            to tame the proud, the fetter'd slave to free,
            these are imperial arts, and worthy thee. --dryden.
      1913 webster

            he sounds his imperial clarion along the whole line
            of battle.                            --e. everett.
      1913 webster

   3. of superior or unusual size or excellence; as, imperial
      paper; imperial tea, etc.
      1913 webster

   imperial bushel, gallon, etc. see bushel, gallon,
      etc.

   imperial chamber, the, the sovereign court of the old
      german empire.

   imperial city, under the first german empire, a city having
      no head but the emperor.

   imperial diet, an assembly of all the states of the german
      empire.

   imperial drill. manuf. see under 8th drill.

   imperial eagle. zool. see eagle.

   imperial green. see paris green, under green.

   imperial guard, the royal guard instituted by napoleon i.
      

   imperial weights and measures, the standards legalized by
      the british parliament.
      1913 webster
see also:
empire imperial bushel gallon bushel gallon imperial chamber 
imperial city imperial diet imperial drill drill imperial eagle 
eagle imperial green paris green green imperial guard 
imperial weights and measures 

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

imperial \impe"rial\, n. f. imp'eriale: cf. sp. imperial.
   1913 webster
   1. the tuft of hair on a man's lower lip and chin; -- so
      called from the style of beard of napoleon iii.
      1913 webster

   2. an outside seat on a diligence. --t. hughes.
      1913 webster

   3. a luggage case on the top of a coach. --simmonds.
      1913 webster

   4. anything of unusual size or excellence, as a large
      decanter, a kind of large photograph, a large sheet of
      drawing, printing, or writing paper, etc.
      1913 webster

   5. a gold coin of russia worth ten rubles, or about eight
      dollars. --mcelrath.
      1913 webster

   6. a kind of fine cloth brought into england from greece. or
      other eastern countries, in the middle ages.
      1913 webster

   7. a game at cards differing from piquet in some minor
      details, and in having a trump; also, any one of several
      combinations of cards which score in this game.
      webster 1913 suppl.

[3] : WordNet (r) 2.0

imperial
     adj 1: relating to or associated with an empire; "imperial colony";
            "the imperial gallon was standardized legally
            throughout the british empire"
     2: befitting or belonging to an emperor or empress; "imperial
        palace"
     3: belonging to or befitting a supreme ruler; "golden age of
        imperial splendor"; "purple tyrant"; "regal attire";
        "treated with royal acclaim"; "the royal carriage of a
        stag's head" syn: majestic, purple, regal, royal
     n 1: a small tufted beard worn by emperor napoleon iii syn: imperial
          beard
     2: a piece of luggage carried on top of a coach
see also:
majestic purple regal royal imperial beard 

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

84 moby thesaurus words for "imperial":
   vandyke, absolute, absolutist, absolutistic, arbitrary,
   aristocratic, arrogant, august, authoritarian, authoritative,
   autocratic, beard, beaver, bossy, bristles, crown, despotic,
   dictatorial, domineering, down, duodecimo, dynastic, eighteenmo,
   exalted, excellent, feudal, folio, goatee, grand, grinding,
   high-handed, imperative, imperatorial, imperatorious, imperious,
   imposing, kinglike, kingly, lofty, lordly, magisterial, magistral,
   magnificent, majestic, masterful, medium, monarchal, monarchial,
   monarchic, monocratic, noble, octavo, octodecimo, oppressive,
   overbearing, overruling, peach fuzz, peremptory, princelike,
   princely, purple, quarto, queenlike, queenly, regal, repressive,
   royal, severe, sextodecimo, side whiskers, sixteenmo, sovereign,
   splendid, strict, stubble, super, superior, suppressive, supreme,
   tuft, twelvemo, tyrannical, tyrannous, whiskers

[5] : U.S. Gazetteer (1990)

imperial, ca city, fips 36280
  location: 32.84051 n, 115.57103 w
  population 1990: 4113 1372 housing units
  area: 6.3 sq km land, 0.0 sq km water
  zip codes: 92251
imperial, mo cdp, fips 34354
  location: 38.36773 n, 90.37222 w
  population 1990: 4156 1564 housing units
  area: 14.0 sq km land, 1.9 sq km water
imperial, ne city, fips 23690
  location: 40.51623 n, 101.63761 w
  population 1990: 2007 870 housing units
  area: 6.4 sq km land, 0.0 sq km water
  zip codes: 69033
imperial, pa
  zip codes: 15126
imperial, tx
  zip codes: 79743

[6] : U.S. Gazetteer Counties (2000)

imperial -- u.s. county in california
   population 2000:    142361
   housing units 2000: 43891
   land area 2000:     4174.732434 sq. miles 10812.506906 sq. km
   water area 2000:    306.998053 sq. miles 795.121274 sq. km
   total area 2000:    4481.730487 sq. miles 11607.628180 sq. km
   located within:       california ca, fips 06
   location:             32.963098 n, 115.487593 w
   headwords:
    imperial
    imperial, ca
    imperial county
    imperial county, ca

[7] : U.S. Gazetteer Places (2000)

imperial, mo -- u.s. census designated place in missouri
   population 2000:    4373
   housing units 2000: 1720
   land area 2000:     5.382812 sq. miles 13.941418 sq. km
   water area 2000:    0.741433 sq. miles 1.920303 sq. km
   total area 2000:    6.124245 sq. miles 15.861721 sq. km
   fips code:            34354
   located within:       missouri mo, fips 29
   location:             38.370735 n, 90.373460 w
   zip codes 1990:    
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    imperial, mo
    imperial

[8] : U.S. Gazetteer Places (2000)

imperial, ne -- u.s. city in nebraska
   population 2000:    1982
   housing units 2000: 887
   land area 2000:     2.517650 sq. miles 6.520684 sq. km
   water area 2000:    0.001206 sq. miles 0.003124 sq. km
   total area 2000:    2.518856 sq. miles 6.523808 sq. km
   fips code:            23690
   located within:       nebraska ne, fips 31
   location:             40.518398 n, 101.642491 w
   zip codes 1990:     69033
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    imperial, ne
    imperial

[9] : U.S. Gazetteer Places (2000)

imperial, ca -- u.s. city in california
   population 2000:    7560
   housing units 2000: 2385
   land area 2000:     3.912696 sq. miles 10.133835 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    3.912696 sq. miles 10.133835 sq. km
   fips code:            36280
   located within:       california ca, fips 06
   location:             32.842630 n, 115.571841 w
   zip codes 1990:     92251
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    imperial, ca
    imperial

[10] : U.S. Gazetteer Places (2000)

imperial-enlow, pa -- u.s. census designated place in pennsylvania
   population 2000:    3514
   housing units 2000: 1492
   land area 2000:     4.040907 sq. miles 10.465900 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    4.040907 sq. miles 10.465900 sq. km
   fips code:            36772
   located within:       pennsylvania pa, fips 42
   location:             40.451404 n, 80.242353 w
   zip codes 1990:     15126
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    imperial-enlow, pa
    imperial-enlow
    imperial, pa
    imperial

[11] : U.S. Gazetteer Places (2000)

imperial, tx -- u.s. census designated place in texas
   population 2000:    428
   housing units 2000: 245
   land area 2000:     4.233356 sq. miles 10.964340 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    4.233356 sq. miles 10.964340 sq. km
   fips code:            35828
   located within:       texas tx, fips 48
   location:             31.271968 n, 102.695799 w
   zip codes 1990:     79743
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    imperial, tx
    imperial

Imperial >> I Words
Imperial, definition of term: Imperial
imperial_pag1.html

Imperial Weight >> I Words
Imperial Weight, definition of term: Imperial Weight
imperial+weight_pag1.html

Imperial Moth >> I Words
Imperial Moth, definition of term: Imperial Moth
imperial+moth_pag1.html

Imperial Gallon >> I Words
Imperial Gallon, definition of term: Imperial Gallon
imperial+gallon_pag1.html

Eacles Imperial >> E Words
Eacles Imperial, definition of term: Eacles Imperial
eacles+imperial_pag1.html