| 释义 |
clyp·e·as·tri·na
\-əˈstrīnə, -rēnə\ noun plural
Usage: capitalized
Etymology: New Latin, from Clypeaster + -ina
: a suborder of sea urchins (order Exocycloida) comprising a large number of flattened more or less discoidal sea urchins (as the cake urchins and sand dollars) — compare spatangina |