'Dentalium pretiosum' definitions:

Definition of 'Dentalium pretiosum'

From: GCIDE

Ioqua shell \I"o*qua shell`\ [From the native name.] (Zool.) The shell of a large Dentalium (Dentalium pretiosum), formerly used as shell money, and for ornaments, by the Indians of the west coast of North America. [1913 Webster]