Trismus

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tris·mus / ˈtrizməs/ • n. Med. spasm of the jaw muscles, causing the mouth to remain tightly closed, typically as a symptom of tetanus. Also called lockjaw.

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lock·jaw / ˈläkˌjô/ • n. nontechnical term for trismus.

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trismus (triz-mŭs) n. spasm of the jaw muscles, keeping the jaws tightly closed. This is the characteristic symptom of tetanus but it also occurs as a sensitivity reaction to certain drugs and in disorders of the basal ganglia.

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lockjaw (lok-jaw) n. see tetanus.

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lockjaw See tetanus

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lockjaw •lockjaw