ˌtȯrd.əˈkälə̇s noun
( -es )
Etymology: New Latin, from Latin tortus twisted + -i- + collum neck — more at tort , collar
: an abnormal and more-or-less fixed twisting of the neck associated in man with muscular contracture especially of a sternocleidomastoid and in domestic and other lower mammals occurring especially in conjunction with severe intestinal parasitism or ear disorders — called also wryneck