Feces n. pl. : dregs; sediment; excrement. See FAeces.

Example:
Feces.............................................?

Taxonomy
food, toilet, odor, stool, seeds, faeces, non-human animals, droppings, dung, free encyclopedia, Pets, animal feces, presence, energy, plant, baby, consumption, blood.

Defination from the web:
feces may still contain a large amount of energy, often 50% of that of the original food. ... Feces serve not only as a basic food, but also a supplement to the usual diet of some animals. ...