co·chli·di·idae I. \ˌkōkləˈdīəˌdē, ˌkä-\ Etymology: New Latin, from Cochlidium, type genus (from Greek kochlidion, diminutive of kochlos land snail) + -idae — more at cochlea synonym of eucleidae II. Etymology: New Latin, from Cochlidium, type genus + -idae synonym of eucleidae