Definition of Mastoid

1. Noun. Process of the temporal bone behind the ear at the base of the skull.

Exact synonyms: Mastoid Bone, Mastoid Process, Mastoidal
Terms within: Mastoidale
Group relationships: Os Temporale, Temporal Bone
Generic synonyms: Appendage, Outgrowth, Process

2. Adjective. Of or relating to or in the region of the mastoid process.

3. Adjective. Relating to or resembling a nipple.
Exact synonyms: Mastoidal
Partainyms: Nipple

Definition of Mastoid

1. a. Resembling the nipple or the breast; -- applied specifically to a process of the temporal bone behind the ear.

Definition of Mastoid

1. Adjective. Of or relating to the mastoid process. ¹

2. Noun. (anatomy) The mastoid process. ¹

3. Adjective. Shaped like a breast or nipple. ¹

¹ Source:

Definition of Mastoid

1. the rear portion of the temporal bone [n -S]

Medical Definition of Mastoid

1. A bony process off the base of the skull that is composed of air cells. Inflammation of the mastoid is known as mastoiditis. (27 Sep 1997)

Mastoid Pictures

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Lexicographical Neighbors of Mastoid

mastoid (current term)
mastoid abscess
mastoid air cells
mastoid angle of parietal bone
mastoid antrum
mastoid artery
mastoid bone
mastoid bones
mastoid border of occipital bone
mastoid branch of occipital artery
mastoid branches of posterior auricular artery
mastoid canaliculus
mastoid cells
mastoid emissary vein
mastoid empyema

Literary usage of Mastoid

Below you will find example usage of this term as found in modern and/or classical literature:

1. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1899)
"The Electric Lathe and Burr in Operations on the mastoid and Petrous Portions of the Temporal Bone.—E. LOMBARD (Ann. dts mal. de ..."

2. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"The fibres form a small muscle, which ascends to be inserted into the posterior margin of the mastoid process, beneath the Splenius and Sterno-mastoid ..."

3. American Journal of Roentgenology by American Radium Society (1919)
"In mastoid positions, the patient lies flat on the abdomen, as shown in the illustration, the face toward the right for the left mastoid, and vice versa. ..."

4. Surgery, Gynecology & Obstetrics by The American College of Surgeons, Franklin H. Martin Memorial Foundation (1913)
"In its present state of perfected technique, the mastoid operation usually accomplishes this function. Now technical skill and common sense have perceived ..."

5. Buying Options: Wall Street on a Shoestring by Antony Rodolakis, Nicholas Tetrick (1860)
"As regards their functions, the mastoid cells may be' considered merely in the light of ... Like the mastoid process, the mastoid cells vary much in size in ..."

6. The Laryngoscope by American Laryngological, Rhinological, and Otological Society (1902)
"The Use of the Ice Coil in the Abortive Treatment of Acute Inflammation of the mastoid Process.—EB BENCH, (New York).—NY Bye and Ear Infirmary Reports, ..."

7. The Diseases of the ear: Their Nature, Diagnosis, and Treatment by Joseph Toynbee, James Hinton (1868)
"As regards their functions, the mastoid cells may be considered merely in the light of ... Like the mastoid process, the mastoid cells vary much in size in ..."

8. Anatomy, Descriptive and Applied by Henry Gray (1910)
"The mastoid portion is situated at the posterior part of the bone (Figs. ... The outer surface of the mastoid is rough, and gives attachment to the ..."

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