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. |