This form of the adjective is used only with masculine nouns (metatarsus varus, plural metatarsi vari. With feminine nouns the form vara is used (tibia vara, plural tibiae varae), and with neuter nouns the form varum (genu varum, plural genua vara). Do not confuse this word with valgus. Latin adjective describing any joint in an extremity that is deformed in such a way that the more distal of the two bones forming the joint deviates toward the midline, as in bowleg. [Mod. L. bent inward, fr. L. knock-kneed]