ˌheləˈsīnə noun
Etymology: New Latin, from helic- + -ina
1. capitalized : a genus of operculate land snails (suborder Rhipidoglossa) that occur chiefly in warm regions and are distinguished by a short-spired shell, a single auricle, and a pulmonary chamber replacing the gill
2. -s : any mollusk shell of the genus Helicina