[co.qui.na] n [Sp, prob. dim. of coca head, alter. of coco bogeyman, coconut] (1837) 1: a soft whitish limestone formed of broken shells and corals cemented together and used for building
2: a small clam (Donax variabilis) used for broth or chowder and occurring in the intertidal zone of sandy Atlantic beaches from Delaware to the Gulf of Mexico