The Collaborative International Dictionary
Ischiocerite
Ischiocerite \Is`chi*o*ce"rite\, n. [Gr. 'ischi`on the hip + ke`ras a horn.] (Zo["o]l.) The third joint or the antenn[ae] of the Crustacea.
Wiktionary
ischiocerite
n. (context zoology English) The third joint of the antennae of crustacea.