mastoid

mastoid /mas·toid/ (mas´toid)

1. breast-shaped.

2. mastoid process.

3. pertaining to the mastoid process.

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mas·toid (mstoid)

n.

The mastoid process.

adj.

1. Of or relating to the mastoid process, antrum, or sinuses.

2. Shaped like a breast or nipple.

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mastoid

(mas´toid),
n 1. the protuberance of the temporal bone located directly behind the external ear that contains the air cells and on which the cervical muscles attach.
adj 2. breast-shaped.