Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The most prominent projecting point of the occipital bone at the base of the skull.

from The Century Dictionary.

  • noun An onion. This pronunciation is shown, without the changed spelling, in the second extract.
  • noun In anatomy, a ridge of the occiput to which muscles of the nape are attached; now, specifically, the external occipital protuberance.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) The external occipital protuberance of the skull.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy A small protuberance on the external surface of the back of the skull near the neck; the external occipital protuberance.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance)

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek īnion, occipital bone, from īs, īn-, sinew, fiber; see wei- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

An Ancient Greek word meaning occipital bone or back of the head.

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