abactinal


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abactinal

(æbˈæktɪnəl)
adj
(Zoology) zoology (of organisms showing radial symmetry) situated away from or opposite to the mouth; aboral
abˈactinally adv
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.abactinal - (of radiate animals) located on the surface or end opposite to that on which the mouth is situated
actinal - (of radiate organisms) located on the surface or end on which the mouth is situated
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References in periodicals archive ?
Approximately 15 days after fertilization, settlers have more pronounced pentamerous symmetry, the abactinal and actinal regions become distinct, the dorsal spines become more developed (most numerous in the margins), and the eyespot is fully formed (Fig.
Fuertes espinas conicas cubren la superficie abactinal (aboral), las placas abactinales con numerosos poros a traves de los cuales salen las papulas.
forbesi, and the long slender abactinal spines with a wreath of minor pedicellariae halfway up these spines typical of A.