defecation

American  

[def-i-key-shuhn] / ˌdɛf ɪˈkeɪ ʃən /

noun

1. an act or instance of voiding excrement from the bowels; bowel movement.

   For best results, the stool sample should be tested within half an hour of defecation.

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Etymology

Origin of defecation

First recorded in 1620–30, for an earlier sense; from Latin dēfaecātiōn-, stem of dēfaecātiō “a cleansing,” from dēfaecāre “to cleanse, refine”; see defecate ( def. ), -ion ( def. )