What is the meaning of Mastoid?

Being the process of the temporal bone behind the ear.

  1. Being any of several bony elements that occupy a similar position in the skull of lower vertebrates.

Being any of several bony elements that occupy a similar position in the skull of lower vertebrates.

Of or relating to the mastoid process of the temporal bone.

Ellipsis of mastoid process..

Clipping of mastoiditis.

Source: wiktionary.org