The Collaborative International Dictionary
Gnathite
Gnathite \Gnath"ite\, n. [Gr. gna`qos the jaw.] (Zo["o]l.) Any one of the mouth appendages of the Arthropoda. They are known as mandibles, maxill[ae], and maxillipeds.
Wiktionary
gnathite
n. (context zoology English) Any of the mouth appendages of the Arthropoda.