| 释义 |
palæchinoid, pale-, a. and n. Zool.|pæliːˈkaɪnɔɪd|
[f. mod.L. Palæchinoidea, f. Palæchinus (for Palæechinus), name of the typical genus, f. Gr. παλαιός (see palæo-) + ἐχῖνος sea-urchin, echinus.]
a. adj. Belonging to the extinct division (Palæchinoidea) of Sea-urchins (Echinoidea), whose fossil remains are found in palæozoic rocks.
b. n. A sea-urchin of this division.
1889Nicholson & Lydekker Palæont. I. 373 In all the Palechinoids there is a large peristomial aperture. |