inion (redirected from Inions)

in·i·on  (n-n)

n.

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

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[Greek nion, occipital bone, from s, n-, sinew, fiber; see wei- in Indo-European roots.]

Thesaurus

Noun

1.

inion - the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance) craniometric point - a landmark on the skull from which craniometric measurements can be taken occipital bone - a saucer-shaped membrane bone that forms the back of the skull