Part of speech:
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.
The mastoid process.
Find another word for mastoid. In this page you can discover 10 synonyms, antonyms, idiomatic expressions, and related words for mastoid, like: mastoidal, mastoid-process, mastoid-bone, ethmoid, sphenoid, lacrimal, nasal-cavity, parenchyma, hyoid-bone and tympanic-membrane.