LATIN DICTIONARYLexicon Latīnum
English → Latin

“defecation” in Latin

The English word defecation itself goes back to Latin faex, through dēfaecātiō.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

defecation
purgatio (general term ☞ purificatio is a bad word): lustratio (defecation by expiatory sacrifice): defaecatio (very late; Tert., Anim., 27).

Quick answer

What is the Latin word for defecation?
The usual Latin words for “defecation” are pūrgātiō, lūstrātiō, dēfaecātiō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.