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