(pathology) Inflammation of the mastoid process of the temporal bone.

(anatomy) Being the process of the temporal bone behind the ear. / (zootomy) Being any of several bony elements that occupy a similar position in the skull of lower vertebrates.

(anatomy) Ellipsis of mastoid process.. / (medicine, informal) Clipping of mastoiditis.

plural of mastoid

mastoid

The mastoid process.

The conical, nipple-like projection of the petrous part of the temporal bone, that is situated behind the ear in humans and many other vertebrates, and serves as a site of muscle attachment.

plural of mastoid bone

plural of mastoid process

(anatomy) One of the small cavities in the mastoid process of the temporal bone that develop after birth and are filled with air.