(1):
(n.) The comb of a scorpion. See Comb, 4 (b).
(2):
(n.) A vascular pigmented membrane projecting into the vitreous humor within the globe of the eye in birds, and in many reptiles and fishes; - also called marsupium.
(3):
(n.) Any species of bivalve mollusks of the genus Pecten, and numerous allied genera (family Pectinidae); a scallop. See Scallop.
(4):
(n.) The pubic bone.