Etymology

cranidium

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Today it means: In trilobites, the part of the cephalon (the head) consisting of the glabella and the fixigenae. Full definition →

Ancient Greek κρανίδιον
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The story

  1. Ancient Greek · borrowed fromκρανίδιον“small skull”
  2. English todaycranidium

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

Etymology from Wiktionary, CC BY-SA 4.0.