MASTOID PROCESS Definition & Meaning

mastoid process

noun

a large, bony prominence on the base of the skull behind the ear, containing air spaces that connect with the middle ear cavity.

mastoid process

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A protruding bony area in the lower part of the skull that is located behind the ear in humans and many other vertebrates and serves as a site of muscle attachment. The mastoid process contains small air-filled cavities called mastoid cells that communicate with the middle ear.

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�y��vlog History and Origins

Origin of mastoid process¹

First recorded in 1725–35

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Example Sentences

Examples have not been reviewed.

For example, a small change of direction on the mastoid process, a bony projection behind the ear, indicates whether a person has detached or attached earlobes.

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Further, a prominence called the mastoid process is notched at the back, not smooth.

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The tumor first appears in the depression between the mastoid process and the ramus of the jaw, which it fills up, and at the same time thrusts outward the lobe of the ear.

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Pain in left neck behind mastoid process, running backward and upward.

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In the horse it is attached to the angle of the lower jaw by a tendon, which an aponeurosis that passes under the parotid gland binds to the mastoido-humeral muscle and the mastoid process.

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