The Collaborative International Dictionary
Excrementive
Excrementive \Ex`cre*men"tive\, a.
Serving to excrete; connected with excretion or excrement.
[R.] ``The excrementive parts.''
--Felthman.
Wiktionary
excrementive
a. (context archaic English) Serving to excrete; connected with excretion or excrement.