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单词 orocentral
释义 orocentral, a.|ɔərəʊˈsɛntrəl|
[irreg. for *oricentral, f. L. ōs, ōr- mouth + central.]
Occupying the centre of the oral side (of an echinoderm).
1884P. H. Carpenter in Challenger Rep., Zool. xxxii. 158, I propose to call it [a plate of calcareous matter] the ‘orocentral’.1885Athenæum 11 Apr. 475/2 The orocentral plate corresponds with the centrodorsal.1888Rolleston & Jackson Anim. Life 545 (Echinodermata) In its typical form..there is an orocentral surrounded by five interradial oral plates, and these in their turns by circles of oral radials and interradials.
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