granule

from WordNet (r) 3.0 (2006)

granule
    n 1: a tiny grain

from The Collaborative International Dictionary of English v.0.48

Granule \Gran"ule\ (gr[a^]n"[-u]l), n. [L. granulum, dim. of
   granum grain: cf. F. granule. See {Grain} a kernel.]
   A little grain; a small particle; a pellet.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

57 Moby Thesaurus words for "granule":
      ace, atom, bit, breccia, dab, debris, detritus, dole, dot, dram,
      dribble, driblet, dwarf, farthing, fleck, flyspeck, fragment,
      gobbet, grain, granulet, gravel, grit, groat, hair, handful, iota,
      jot, little, little bit, minim, minimum, minutiae, mite, modicum,
      molecule, mote, nutshell, ounce, particle, pebble, pinch, pittance,
      point, sand, scruple, shingle, smidgen, smitch, speck, spoonful,
      spot, thimbleful, tiny bit, tittle, trifling amount, trivia,
      whit