[kuh-peez, ka-] 
| 1. | a small marine bivalve of the genus Placuna, esp. P. placenta, common in Philippine coastal waters and some other parts of the Pacific Ocean. |
| 2. | Also called windowpane shell, windowglass shell. the squarish, translucent inner shell of Placuna used in making lamps, windowpane, and decorative objects. |
