Etymology

nautiloid

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Today it means: A mollusc resembling a nautilus; specifically, a cephalopod of the subclass Nautiloidea. Full definition →

First used 18th c.
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The story

From nautilus + -oid.

First known use, by meaning

  • from 18th c. A mollusc resembling a nautilus; specifically, a cephalopod of the subclass Nautiloidea.
  • from 19th c. Resembling a nautilus.
  • from 19th c. Pertaining to the subclass Nautiloidea.

Etymology from Wiktionary, CC BY-SA 4.0.