| 单词 | ocular plate |
| 释义 | > as lemmasocular plate ocular plate n. [so called because it was originally supposed to bear an eye] Zoology each of five small plates located between the genital plates of the test of a sea urchin. ΚΠ 1873 C. W. Thomson Depths of Sea iii. 109 We have thus the three anterior ambulacra ending in their ocular plates, meeting at one point, where there are likewise four genital plates. 1963 G. A. Kerkut Borradaile & Potts's Invertebrata (rev. ed.) xvii. 688 At the aboral pole each radius ends in a single ocular plate, which bears the opening of the terminal tentacle. 1994 E. E. Ruppert & R. D. Barnes Invertebr. Zool. (ed. 6) xviii. 953/1 The genital plates, each of which bears a gonopore, line up with interambulacral areas and alternate with the ocular plates. < as lemmas |
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