What is "opisthotonos"

Opisthotonos \Op`is*thot"o*nos\, n. [NL., from Gr. ? backwards + ? a stretching.] (Med.) A tetanic spasm in which the body is bent backwards and stiffened.

n. (context medicine English) A tetanic spasm in which the body is bent backwards and stiffened.

n. severe spasm in which the back arches and the head bends back and heels flex toward the back