Search Result for "trochus": 

The Collaborative International Dictionary of English v.0.48:

Trochus \Tro"chus\, n.; pl. Trochi. [NL., fr. Gr. ? a wheel.] (Zool.) Any one of numerous species of marine univalve shells belonging to Trochus and many allied genera of the family Trochidae. Some of the species are called also topshells. [1913 Webster]