( n. )
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.
( n. )
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.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012