Etymology

pectunculus

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Today it means: Any of the series of small longitudinal ridges on the cerebral aqueduct. Full definition →

Latin pectunculus
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The story

  1. Latin · borrowed frompectunculus
  2. English todaypectunculus

Borrowed from Latin pectunculus, the diminutive of pecten (“comb”).

Etymology from Wiktionary, CC BY-SA 4.0.