Etymology

pinniform

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Today it means: Shaped like a fin or feather. Full definition →

Latin pinna
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The story

  1. Latin · derived frompinna“feather, fin”
  2. English todaypinniform

From Latin pinna (“feather, fin”) + -form.

Words from the same roots

Latinpinna all →

pinnaclepinnapinniped

Etymology from Wiktionary, CC BY-SA 4.0.