opisthotonos opisthotonoid • opisthotonus · · · Info · Definitions · Characters · · opisthotonos · · Text Latin · · Script 12 · · Length 5 · · Syllables Definitions · · · (noun) severe spasm in which the back arches and the head bends back and heels flex toward the back. · · Noun Definition 1 Characters · · h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074