| 释义 |
echi·no·cys·toi·da
\“+sə̇ˈstȯidə\ noun plural
Usage: capitalized
Etymology: New Latin, irregular from Echinocystites, fossil genus of Echinodermata (from echin- + -cystis + -ites -ite) + -oida
: an order of Silurian fossil echinoids having small irregular spheroidal or flattened tests |