Etymology

ctenidium

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Today it means: A respiratory system, in the form of a comb, in some molluscs Full definition →

Medieval Greek κτενίδιον
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The story

  1. Medieval Greek · borrowed fromκτενίδιον“comb”
  2. English todayctenidium

Borrowed from Medieval Greek κτενίδιον (ktenídion, “comb”). By surface analysis, cteno- + -idium.

Etymology from Wiktionary, CC BY-SA 4.0.