Fauces

/ˈfōˌsēz/

Noun, pl. fauces

1. (Anatomy)
The narrow passage from the mouth to the pharynx, situated between the soft palate and the base of the tongue. (wiktionary.org)

2. (Botany)
The throat of a calyx, corolla, etc. (wiktionary.org)

3. (Zoology)
That portion of the interior of a spiral shell which can be seen by looking into the aperture. (wiktionary.org)

4. The arched opening at the back of the mouth leading to the pharynx. (Google Dictionary)

5. The passage between the back of the mouth and the pharynx. (wordnetweb.princeton.edu)

Word origin: Latin word.