coquina: Meaning and Definition of

co•qui•na

1. Also calleda small clam, Donax variabilis, abundant in the intertidal zone of eastern and southern U.S. coastal beaches, having fanlike bands of various hues, the paired empty shells often spread in a butterfly shape.
2. any similar clam, esp. of the genus Donax.
3. a soft, whitish rock made up of fragments of marine shells and coral, used as a building material.