The Collaborative International Dictionary of English v.0.48:

Rice \Rice\, n. [F. riz (cf. Pr. ris, It. riso), L. oryza, Gr.
   ???, ???, probably from the Persian; cf. OPers. br[imac]zi,
   akin to Skr. vr[imac]hi; or perh. akin to E. rye. Cf. Rye.]
   (Bot.)
   A well-known cereal grass (Oryza sativa) and its seed. This
   plant is extensively cultivated in warm climates, and the
   grain forms a large portion of the food of the inhabitants.
   In America it grows chiefly on low, moist land, which can be
   overflowed.
   [1913 Webster]

   Ant rice. (Bot.) See under Ant.

   French rice. (Bot.) See Amelcorn.

   Indian rice., a tall reedlike water grass (Zizania
      aquatica), bearing panicles of a long, slender grain,
      much used for food by North American Indians. It is common
      in shallow water in the Northern States. Called also
      water oat, Canadian wild rice, etc.

   Mountain rice, any species of an American genus
      (Oryzopsis) of grasses, somewhat resembling rice.

   Rice bunting. (Zool.) Same as Ricebird.

   Rice hen (Zool.), the Florida gallinule.

   Rice mouse (Zool.), a large dark-colored field mouse
      (Calomys palistris) of the Southern United States.

   Rice paper, a kind of thin, delicate paper, brought from
      China, -- used for painting upon, and for the manufacture
      of fancy articles. It is made by cutting the pith of a
      large herb (Fatsia papyrifera, related to the ginseng)
      into one roll or sheet, which is flattened out under
      pressure. Called also pith paper.

   Rice troupial (Zool.), the bobolink.

   Rice water, a drink for invalids made by boiling a small
      quantity of rice in water.

   Rice-water discharge (Med.), a liquid, resembling rice
      water in appearance, which is vomited, and discharged from
      the bowels, in cholera.

   Rice weevil (Zool.), a small beetle (Calandra oryzae, or
      Sitophilus oryzae) which destroys rice, wheat, and
      Indian corn by eating out the interior; -- called also
      black weevil.
      [1913 Webster]

WordNet (r) 3.0 (2006):

rice
    n 1: grains used as food either unpolished or more often
         polished
    2: annual or perennial rhizomatous marsh grasses; seed used for
       food; straw used for paper
    3: English lyricist who frequently worked with Andrew Lloyd
       Webber (born in 1944) [syn: Rice, Sir Tim Rice, Timothy
       Miles Bindon Rice]
    4: United States playwright (1892-1967) [syn: Rice, Elmer
       Rice, Elmer Leopold Rice, Elmer Reizenstein]
    v 1: sieve so that it becomes the consistency of rice; "rice the
         potatoes"

U.S. Gazetteer Counties (2000):

Rice -- U.S. County in Kansas
   Population (2000):    10761
   Housing Units (2000): 4609
   Land area (2000):     726.577760 sq. miles (1881.827679 sq. km)
   Water area (2000):    1.718168 sq. miles (4.450034 sq. km)
   Total area (2000):    728.295928 sq. miles (1886.277713 sq. km)
   Located within:       Kansas (KS), FIPS 20
   Location:             38.349411 N, 98.217441 W
   Headwords:
    Rice
    Rice, KS
    Rice County
    Rice County, KS


U.S. Gazetteer Counties (2000):

Rice -- U.S. County in Minnesota
   Population (2000):    56665
   Housing Units (2000): 20061
   Land area (2000):     497.568836 sq. miles (1288.697315 sq. km)
   Water area (2000):    18.557216 sq. miles (48.062967 sq. km)
   Total area (2000):    516.126052 sq. miles (1336.760282 sq. km)
   Located within:       Minnesota (MN), FIPS 27
   Location:             44.348087 N, 93.283024 W
   Headwords:
    Rice
    Rice, MN
    Rice County
    Rice County, MN


U.S. Gazetteer Places (2000):

Rice, TX -- U.S. city in Texas
   Population (2000):    798
   Housing Units (2000): 371
   Land area (2000):     2.705666 sq. miles (7.007642 sq. km)
   Water area (2000):    0.091787 sq. miles (0.237728 sq. km)
   Total area (2000):    2.797453 sq. miles (7.245370 sq. km)
   FIPS code:            61736
   Located within:       Texas (TX), FIPS 48
   Location:             32.234563 N, 96.494670 W
   ZIP Codes (1990):     75155
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rice, TX
    Rice


U.S. Gazetteer Places (2000):

Rice, MN -- U.S. city in Minnesota
   Population (2000):    711
   Housing Units (2000): 250
   Land area (2000):     5.985750 sq. miles (15.503020 sq. km)
   Water area (2000):    0.111547 sq. miles (0.288906 sq. km)
   Total area (2000):    6.097297 sq. miles (15.791926 sq. km)
   FIPS code:            53998
   Located within:       Minnesota (MN), FIPS 27
   Location:             45.752847 N, 94.222980 W
   ZIP Codes (1990):     56367
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rice, MN
    Rice