cranidium

English

Etymology

Latinized form of Ancient Greek κρανίδιον (kranídion, small skull), from κρανίον (kraníon) +‎ -ίδιον (-ídion).

Noun

cranidium (plural cranidiums or cranidia)

  1. (anatomy) In trilobites, the part of the cephalon (the head) consisting of the glabella and the fixigenae.