[ad. F. bdellomètre, f. Gr. βδέλλα leech + μέτρον measure.] A surgical instrument proposed as a substitute for leeches, and fitted to show the amount of blood drawn.
1839. Hooper, Med. Dict., 254.
1874. Dunglison, Med. Dict., Bdellometer consists of a cupping-glass, to which a scarificator and exhausting syringe are attached.