excretal--prophetes.ai

excretal

excretal, a.
  (ɛkˈskriːtəl)
  [f. excreta + -al.]
  Of or pertaining to excreta.

1864 Jrnl. R. Agric. Soc. XXV. 496 Human excretal matters. 1964 M. Hynes Med. Bacteriol. (ed. 8) xxxi. 478 A lower ratio suggests excretal contamination.

Oxford English Dictionary