Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia, Wikipedia.
A conical protuberance of the posterior portion of the temporal bone that is situated behind the ear in humans and many other vertebrates and serves as a site of muscle attachment. Also called mastoid bone.
a large bony prominence on the base of the skull behind the ear containing air spaces that connect with the middle ear cavity.
Switch to new thesaurus
|Noun||1.||mastoid process - process of the temporal bone behind the ear at the base of the skull|
mastoidale - the craniometric point at the lowest point of the mastoid process
os temporale, temporal bone - a thick bone forming the side of the human cranium and encasing the inner ear