Meaning of MASTOID in English

MASTOID

I. ˈmas-ˌtȯid adjective

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

Date: 1732

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

II. noun

Date: 1840

: a mastoid bone or process

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.