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.
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1. Resembling a mamma; breast-shaped. 2. Relating to the m. process, antrum, cells, etc. SYN: mastoidal. [masto- + G. eidos, resemblance]

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mas·toid 'mas-.tȯid adj of, relating to, or being the mastoid process also occurring in the region of the mastoid process
mastoid n a mastoid bone or process

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the mastoid process of the temporal bone. See also mastoiditis.

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mas·toid (masґtoid) [masto- + -oid] 1. breast shaped. 2. mastoid process. 3. pertaining to the mastoid process.

Medical dictionary. 2011.

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  • mastoid — MASTOÍD adj. (anat.) mastoidian. (Muşchi mastoid.) Trimis de siveco, 05.08.2004. Sursa: Sinonime  MASTOÍD, Ă adj. Apofiză mastoidă (şi s.f.) = fiecare dintre proeminenţele osului temporal situate îndărătul urechii. [pron. to id. / < fr.… …   Dicționar Român

  • Mastoid — Mas toid, a. [Gr. ?; masto s the breast + e i^dos form: cf. F. masto[ i]de.] (Anat.) (a) Resembling the nipple or the breast; applied specifically to a process of the temporal bone behind the ear. (b) Pertaining to, or in the region of, the… …   The Collaborative International Dictionary of English

  • Mastoid — bezeichnet einen Teil des Schläfenbeins, umgangssprachlich auch Warzenfortsatz genannt, eine antike Vasenform, siehe Mastoid (Gefäß) Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrerer mit demselben Wort beze …   Deutsch Wikipedia

  • mastoid — ► NOUN 1) (also mastoid process) Anatomy a conical projection of the temporal bone behind the ear, to which neck muscles are attached, and which has air spaces linked to the middle ear. 2) (mastoids) (treated as sing. ) informal mastoiditis …   English terms dictionary

  • mastoid — [mas′toid΄] adj. [Gr mastoeidēs < mastos, a breast (see MAST2) + eidēs, OID] 1. shaped like a breast or nipple 2. designating, of, or near a projection of the temporal bone behind the ear n. 1. the mastoid projection: see SKULL …   English World dictionary

  • mastoid — (adj.) breast shaped, resembling a breast or nipple, 1732, from Gk. mastoeides resembling a breast, from mastos (woman s) breast (see MASTO (Cf. masto )) + oeides like, from eidos form, shape (see OID (Cf. oid)). As a noun, 1800, from the… …   Etymology dictionary

  • mastoid — I. 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 …   New Collegiate Dictionary

  • mastoid — mas·toid || mæstɔɪd adj. resembling a breast; of the mastoid process; of or pertaining to the mastoid process of the temporal bone (Anatomy) n. nipple like projection; mastoid process of the temporal bone (Anatomy) …   English contemporary dictionary

  • mastoid —   a. nipple or breast like; denoting such bony outgrowth behind ear.    ♦ mastoidectomy, n. operation to remove mastoid bone.    ♦ mastoiditis, n. inflammation of mastoid cells.    ♦ mastoidotomy, n. surgical incision into mastoid …   Dictionary of difficult words

  • mastoid — /mas toyd/, adj. Anat. 1. of or pertaining to the mastoid process. 2. resembling a breast or nipple. n. 3. the mastoid process. [1725 35; < NL mastoides < Gk mastoeidés. See MASTO , OID] * * * …   Universalium

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