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1

mastoid

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adjective mas·toid \ˈmas-ˌtȯid\

Definition of mastoid

  1. 1 :  being the process of the temporal bone behind the ear; also :  being any of several bony elements that occupy a similar position in the skull of lower vertebrates

  2. 2 :  of, relating to, or occurring in the region of the mastoid process



Origin of mastoid

New Latin mastoides resembling a nipple, mastoid, from Greek mastoeidēs, from mastos breast


First Known Use: 1732


2

mastoid

noun mas·toid

Definition of mastoid

  1. :  a mastoid bone or process



1840

First Known Use of mastoid

1840


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