Excrete

from WordNet (r) 3.0 (2006)

excrete
    v 1: eliminate from the body; "Pass a kidney stone" [syn:
         {excrete}, {egest}, {eliminate}, {pass}]

from The Collaborative International Dictionary of English v.0.48

Excrete \Ex*crete"\, v. t. [imp. & p. p. {Excreted}; p. pr. &
   vb. n. {Excreting}.] [L. excretus, p. p. of excernere to sift
   out, discharge; ex out + cernere to sift, separate. See
   {Crisis}.]
   To separate and throw off; to excrete urine. "The mucus thus
   excreted." --Hooper.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

31 Moby Thesaurus words for "excrete":
      bleed, discharge, effuse, egest, eliminate, emit, exfiltrate,
      extravasate, exudate, exude, filter, filtrate, give off, give out,
      lactate, leach, lixiviate, ooze, pass, percolate, produce, reek,
      secern, secrete, seep, strain, tear, transpire, transude, water,
      weep

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