noun

• The projecting part of the occipital bone at the base of the skull.

  ‘In these cases, the inion may be greatly enlarged.’

  More example sentences

  • ‘There is a slight occipital bunning and a very robust nuchal plane, inion, and mastoid/supramastoid region.’
  • ‘For instance, bone thickness at inion averages 10.3 mm for A. afarensis and 12.8 mm for A. africanus.’