The Collaborative International Dictionary of English v.0.48:

Regurgitate \Re*gur"gi*tate\ (r?*g?r"j?*t?t), v. t. [LL.
   regurgitare, regurgitatum; L. pref. re- re- + gurges, -itis,
   a gulf. Cf. Regorge.]
   To throw or pour back, as from a deep or hollow place; to
   pour or throw back in great quantity.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Regurgitate \Re*gur"gi*tate\, v. i.
   To be thrown or poured back; to rush or surge back.
   [1913 Webster]

         The food may regurgitatem the stomach into the
         esophagus and mouth.                     --Quain.
   [1913 Webster]

WordNet (r) 3.0 (2006):

regurgitate
    v 1: pour or rush back; "The blood regurgitates into the heart
         ventricle"
    2: feed through the beak by regurgitating previously swallowed
       food; "many birds feed their young by regurgitating what they
       have swallowed and carried to the nest"
    3: repeat after memorization; "For the exam, you must be able to
       regurgitate the information" [syn: regurgitate,
       reproduce]
    4: eject the contents of the stomach through the mouth; "After
       drinking too much, the students vomited"; "He purged
       continuously"; "The patient regurgitated the food we gave him
       last night" [syn: vomit, vomit up, purge, cast,
       sick, cat, be sick, disgorge, regorge, retch,
       puke, barf, spew, spue, chuck, upchuck, honk,
       regurgitate, throw up] [ant: keep down]

Moby Thesaurus II by Grady Ward, 1.0:

62 Moby Thesaurus words for "regurgitate":
   barf, be seasick, be sick, bring up, chuck up, come again, copy,
   course, disgorge, ditto, do a repeat, do again, do over, double,
   duplicate, ebb, echo, egest, feed the fish, flood, flow, flow back,
   flow in, flow out, flush, gag, gush, heave, heave the gorge,
   imitate, issue, keck, make, parrot, plagiarize, pour, puke, quote,
   redo, redouble, reduplicate, reecho, reincarnate, reject, renew,
   repeat, reproduce, retch, revive, run, rush, say again, set,
   sick up, spew, stream, surge, surge back, throw up, trend, upchuck,
   vomit