(ש"ע) זיז פטמתי (באנטומיה)

(ת') דמוי שד; פטמתי, פטמי

n. nipple-like projection; mastoid process of the temporal bone (Anatomy)

adj. resembling a breast; of the mastoid process; of or pertaining to the mastoid process of the temporal bone (Anatomy)

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Noun
1. process of the temporal bone behind the ear at the base of the skull
(synonym) mastoid process, mastoid bone, mastoidal
(hypernym) process, outgrowth, appendage
(part-holonym) temporal bone, os temporale
(part-meronym) mastoidale

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Adjective
1. relating to or resembling a nipple
(synonym) mastoidal
(pertainym) nipple, mammilla, mamilla, pap, teat, tit

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

(a.)
Pertaining to, or in the region of, the mastoid process; mastoidal.
  

The rounded protrusion of bone just behind the ear once thought to look like the breast. The word comes from the Greek mastos meaning breast + -oid= breast-like.