† conchyleObs. [ad. L. conchylium: see next; and cf.It.conchiglia, cocchiglia, F. coquille, Eng. cockle.] A shell-fish, a conch. 1610W. Folkingham Art of Survey iv. iii. 83 Oysters, Conchyles, Winkles..Cockles, Muskles.1706Phillips (ed. Kersey), Conchyle or Conchylium, all sorts of Shell-fish.