Spirula

Webster's Dictionary of the English Language

·noun A genus of cephalopods having a multilocular, internal, siphunculated shell in the form of a flat spiral, the coils of which are not in contact.

Related Words

spirula
spīrŭla, ae, f. dim. [spira, II. B.], a small twisted cake or cracknel (post-class.), Arn. 2, 7...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.