| n. | 1. | (Anat.) 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. |
| 2. | (Zool.) Any species of bivalve mollusks of the genus Pecten, and numerous allied genera (family Pectinidæ); a scallop. See Scallop. |
| 3. | (Zool.) The comb of a scorpion. See Comb, 4 (b). |