| 单词 | mastoid process |
| 释义 | mastoid processnouna large, bony prominence on the base of the skull behind the ear, containing air spaces that connect with the middle ear cavity. Also called mastoid, mastoid bone . Origin of mastoid processFirst recorded in 1725–35 Words nearby mastoid processmastoideocentesis, mastoid foramen, mastoiditis, mastoidotomy, mastoid part, mastoid process, mastoid sinus, masto-occipital, mastoparietal, mastopathy, mastopexy Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Medical definitions for mastoid processmastoid process n.A conical protuberance of the posterior portion of the temporal bone that is situated behind the ear and serves as a site of muscle attachment.mastoid bone The part of the first pharyngeal arch in the embryo, developing into the upper jaw in the embryo. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for mastoid processmastoid process [ măs′toid′ ] 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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