echinoid 的 2 个定义
- belonging or pertaining to the class Echinoidea, comprising mainly sea urchins and sand dollars.
- any echinoderm of the Echinoidea.
更多echinoid例句
- A pair of ciliated epaulettes on each side of and behind the ciliated ring is very characteristic of some Echinoid larv.
- The rows of plates in an Echinoid which are not perforated for the emission of the "tube-feet."