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Webster 1913 Edition

Trochus

‖

Tro′chus

,

Noun.

;

pl.

Trochi

(#)

.

[NL., fr. Gr. [GREEK] 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

.