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mastoid

[mas-toid] /ˈmæs tɔɪd/
adjective, Anatomy
1.
of or relating to the mastoid process.
2.
resembling a breast or nipple.
noun
3.
Origin
1725-1735
1725-35; < New Latin mastoīdēs < Greek mastoeidḗs. See masto-, -oid
Related forms
intermastoid, adjective
postmastoid, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for postmastoid

mastoid

/ˈmæstɔɪd/
adjective
1.
shaped like a nipple or breast
2.
designating or relating to a nipple-like process of the temporal bone behind the ear
noun
3.
the mastoid process
4.
(informal) mastoiditis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for postmastoid

mastoid

adj.

"breast-shaped, resembling a breast or nipple," 1732, from Greek mastoeides "resembling a breast," from mastos "(woman's) breast" (see masto-) + -oeides "like," from eidos "form, shape" (see -oid). As a noun, 1800, from the adjective.

Online Etymology Dictionary, © 2010 Douglas Harper
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postmastoid in Medicine

mastoid mas·toid (mās'toid')
n.
The mastoid process. adj.

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

  2. Shaped like a breast or nipple.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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