Definition of pecten

• 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.
• n. - The pubic bone.
• n. - Any species of bivalve mollusks of the genus Pecten, and numerous allied genera (family Pectinidae); a scallop. See Scallop.
• n. - The comb of a scorpion. See Comb, 4 (b).