sphaeridium
/sfi'ridiәm/
📖 中文释义
- 球棘(海胆)
📘 English Definition（英文释义）
- n. A peculiar sense organ found upon the exterior of most
- kinds of sea urchins, and consisting of an oval or sherical head
- surmounting a short pedicel. It is generally supposed to be an
- olfactory organ.