labidometerSurg.|læbɪˈdɒmɪtə(r)| [f.Gr. λαβιδο-, λαβίς forceps + µέτρον -meter. Cf. F. labidomètre.] An instrument consisting of a pair of obstetric forceps with a graduated scale attached for measuring the size of the fœtal head. 1853in Dunglison Med.Lex. (ed. 9).