The Collaborative International Dictionary
Epipharynx
Epipharynx \Ep`i*phar"ynx\, n. [Epi- + pharynx.] (Zo["o]l.) A structure which overlaps the mouth of certain insects. [1913 Webster] ||
Wiktionary
epipharynx
n. (context zoology English) A structure that overlaps the mouth in certain insects.