1. Any organ or part of the body (as the kidneys, skin, etc,) which serves to carry off excrementitious or waste matter.
2. Excrement or matter excreted and ejected; that which is excreted or cast out of an animal body by any of the natural emunctories; especially, alvine (intestines), discharges; dung; ordure (solid excretory products evacuated from the bowels).

Emunctories are any organs, or parts of the body; such as, the kidneys, skin, etc, which serve to carry off excrementitious or waste matter.