
1) Facial muscle 2) Jaw muscle
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https://www.crosswordclues.com/clue/masseter

muscle used to move the lower jaw
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http://phrontistery.info/m.html

• (n.) The large muscle which raises the under jaw, and assists in mastication.
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http://thinkexist.com/dictionary/meaning/masseter/

(from Greek masasthai, `to chew`), prominent muscle of the jaw. The masseter arises from the zygomatic bone (cheekbone) and is inserted at the rear ... [2 related articles]
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http://www.britannica.com/eb/a-z/m/46

<anatomy, muscle> Origin, superficial part: inferior border of the anterior two-thirds of the zygomatic arch; deep part: inferior border and medial surface of the zygomatic arch; insertion, lateral surface of ramus and coronoid process of the mandible; action, elevates mandible (closes jaw); nerve supply, masseteric branch of mandibular divis...
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http://www.encyclo.co.uk/local/20973
Mas'se·ter noun [ New Latin , from Greek ... a chewer, ... a muscle of the lower jaw used in chewing, from ... to chew: confer French
masséter .]
(Anat.) The large muscle which raises the under jaw, and assists in mastication.
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http://www.encyclo.co.uk/webster/M/29

Type: Term Pronunciation: mas′ĕ-tĕr See: masseter (muscle)
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http://www.medilexicon.com/medicaldictionary.php?t=53030
(muscle) Type: Term Definitions: 1. masticatory muscle of posterior cheek; origin, superficial part: inferior border of the anterior two thirds of the zygomatic arch; deep part: inferior border and medial surface of the zygomatic arch; insertion, lateral surface of ramus and coronoid process of the mandible; action, elevates mand...
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http://www.medilexicon.com/medicaldictionary.php?t=56906

Masseter: The muscle that raises the lower jaw.
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http://www.medterms.com/script/main/art.asp?articlekey=4290

The masseter muscle is located on the side of the jaw. It originates from the zygomatic bone and extends to insert in the ramus and angle and body of the mandible. It is innervated by is innervated by the mandibular branch of the trigeminal nerve and is supplied by the masseteric artery. The masseter is one of the chewing muscles that elevates the ...
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http://www.probertencyclopaedia.com/browse/EM.HTM

masseter, chewer.
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https://aclandanatomy.com/Glossary.aspx

muscle in the jaw responsible for chewing
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https://sciencetrek.org/sciencetrek/topics/muscles/glossary.cfm
noun a large muscle that raises the lower jaw and is used in chewing
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https://www.encyclo.co.uk/local/20974

Greek = chewer; adjective - masseteric.
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https://www.encyclo.co.uk/local/21450
No exact match found.