Bolus

from WordNet (r) 3.0 (2006)

bolus
    n 1: a small round soft mass (as of chewed food)
    2: a large pill; used especially in veterinary medicine

from The Collaborative International Dictionary of English v.0.48

Bolus \Bo"lus\, n.; pl. {Boluses}. [L. bolus bit, morsel; cf. G.
   ? lump of earth. See {Bole}, n., clay.]
   A rounded mass of anything, esp. a large pill.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

50 Moby Thesaurus words for "bolus":
      ball, balloon, bite, bladder, blob, boll, bubble, bulb, bulbil,
      bulblet, capsule, champ, chaw, chew, chomp, cud, ellipsoid, geoid,
      globe, globelet, globoid, globule, glomerulus, gnash, gob, gobbet,
      knob, knot, lozenge, morsel, mouthful, munch, nibble, nip,
      oblate spheroid, orb, orbit, orblet, pellet, pill,
      prolate spheroid, quid, rondure, snap, sphere, spheroid, spherule,
      swallow, tablet, troche