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.
常见例句
1
Of or pertaining to the genus Trochus or family Trochidae.
2
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.
