The frontal portion of the face at the mandible that contains the line of fusion of the two separate halves of the mandible (symphysis menti). This line of fusion encloses a triangular area called the mental protuberance (the tip of the chin). On each side, below the second premolar tooth, is the mental foramen, an opening for the passage of blood vessels and a nerve that supply the chin.
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The prominence formed by the anterior projection of the mandible, or lower jaw. SYN: mentum [TA]. [A.S. cin]
- double c. SYN: buccula.
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community health information network

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chin 'chin n the lower portion of the face lying below the lower lip and including the prominence of the lower jaw called also mentum
chin·less -ləs adj

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(chin) mentum.

Medical dictionary. 2011.

Look at other dictionaries:

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  • chin — [chin] n. [ME < OE cin < IE base * ĝenu , chin, jawbone > Goth kinnus, cheek, L gena, cheek, Gr genys, chin] the part of the face below the lower lip; projecting part of the lower jaw vt. chinned, chinning Gym. to pull (oneself) up,… …   English World dictionary

  • chin — CHIN, chinuri, s.n. Suferinţă fizică sau morală intensă. – Din magh. kin. Trimis de valeriu, 03.03.2003. Sursa: DEX 98  CHIN s. 1. calvar, durere, încercare, patimă, păs, pătimire, suferinţă, (înv. şi pop.) muncă, (pop.) aht, cercare, năpastă,… …   Dicționar Român

  • chin — S3 [tʃın] n [: Old English; Origin: cinn] 1.) the front part of your face below your mouth ▪ He rubbed his chin thoughtfully. 2.) (keep your) chin up! spoken used to tell someone to make an effort to stay brave and confident when they are in a… …   Dictionary of contemporary English

  • chin — [ tʃın ] noun count ** the center of the bottom part of your face, below your mouth and above your neck (keep your) chin up SPOKEN used for telling someone to be brave and happy even though they are in a difficult situation: Come on, chin up! We… …   Usage of the words and phrases in modern English

  • chin — ► NOUN ▪ the protruding part of the face below the mouth. ► VERB informal ▪ hit or punch on the chin. ● keep one s chin up Cf. ↑keep one s chin up ● take it on the chin Cf. ↑take it on the chin …   English terms dictionary

  • chin — O.E. cin, cinn, a general Germanic word (Cf. O.S., O.H.G. kinni; O.N. kinn; Ger. Kinn chin; Goth. kinnus cheek ), from PIE root *genu chin, jawbone (Cf. Skt. hanuh, Avestan zanu chin; Armenian cnawt jawbone, cheek; Gk …   Etymology dictionary

  • Chin — (ch[i^]n), n. [AS. cin, akin to OS. kin, G kinn, Icel. kinn, cheek, Dan. & Sw. kind, L. {gena}, Gr. ?; cf. Skr. hanu. [root]232.] 1. The lower extremity of the face below the mouth; the point of the under jaw. [1913 Webster] 2. (Zo[ o]l.) The… …   The Collaborative International Dictionary of English

  • Chin — chin. || 1. interj. U. para llamar al cerdo. || 2. coloq. Méx. U. para expresar sorpresa o enfado. || 3. m. P. Rico …   Enciclopedia Universal

  • Chin- — [span. quina (peruanisch kina )= Rinde des Cinchonabaumes (Chinarinde; ↑ Cinchonin)] engl., frz., span. S: Quin : Bestimmungswort von Zus. mit der Bed. »von Chinin u. a. China oder Cinchona Alkaloiden abgeleitet«, z. B. Chinasäure, Chinolin,… …   Universal-Lexikon

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