- orthoneura
- ‖ orthoneura, n. pl.
(ɔːθəʊˈnjʊərə)[mod.L., f. Gr. ὀρθό-ς ortho- ‘straight’ + νεῦρον nerve.]In Gegenbaur's system of classification, a series of prosobranchiate gastropods, in which the commissure to the abdominal or visceral ganglion takes a straight course backwards.Bell tr. Gegenbaur's Comp. Anat. 348.Hence orthoˈneural, orthoˈneurous adjs., of or pertaining to the Orthoneura.
Useful english dictionary. 2012.