Chvostek's sign

noun
Chvos·tek's sign | \(ḵə-)ˌvȯs-ˌtek(s)- \
variants: or Chvostek sign \(ḵə-)ˌvȯs-ˌtek- \

Medical Definition of Chvostek's sign 

: a twitch of the facial muscles following gentle tapping over the facial nerve in front of the ear that indicates hyperirritability of the facial nerve

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