Digested waste material (typically solid or semi-solid) discharged from a human or other mammal's stomach to the intestines; excrement.
2011 June 21, Kay E. Holekamp, “Why Study Hyenas?”, in The New York Times:
We are also extracting DNA, both from blood collected during immobilizations and from hyena feces.
使用する際の注意点
This word can be used with plural verbs ("feces have a strong smell") or singular ones ("feces has a strong smell"). Use with plural verbs is more common, especially in Britain, and is the only use recognized by some dictionaries, while others recognize both plural and singular use.
A singular form faex is rarely used, in some academic contexts, particularly when the spelling faeces is used for the plural.