What is "recrement"

Recrement \Rec"re*ment\ (r?k"r?*ment), n. [L. recrementum; pref. re- re- + cernere, cretum, to separate, sift: cf. F. r['e]cr['e]ment.]

1. Superfluous matter separated from that which is useful; dross; scoria; as, the recrement of ore.

2. (Med.) (a) Excrement. [Obs.] (a) A substance secreted from the blood and again absorbed by it.

"dross, scum," 1590s, from French récrément (mid-16c.) or directly from Latin recrementum, from re- (see re-) + cernere "to sift, separate" (see crisis).

n. 1 waste matter or dross 2 (context biology English) A bodily secretion that is reabsorbed into the blood