a. 排泄用的

[医] 排泄的, 排泄管, 排泄器

Emunctory \E*munc"to*ry\, n.; pl. {Emunctories}. [L. emunctorium
a pair of snuffers, fr. emungere, emunctum, to blow the nose,
hence, to wipe, cleanse; e out + mungere to blow the nose:
cf. F. ['e]monctoire, formerly spelled also ['e]monctoire.]
(Physiol.)
Any organ or part of the body (as the kidneys, skin, etc.,)
which serves to carry off excrementitious or waste matter.