excrementive en · ADJ
Etymology
From excrement + -ive.
Meanings
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(archaic, not-comparable) excretory
It may, indeed, be thought a modesty in nature to cover those excrementive parts, which, left uncovered, perhaps might offer offence. In birds, they are wholly concealed by their feathers; in beasts, by the tail they are produced with.
1623, Owen Feltham, Resolves: Divine, Moral, Political: