| ctene | (n) a locomotor organ consisting of a row of strong cilia whose bases are fused, Syn. comb-plate |
| platyctenea | (n) an order of Tentaculata, Syn. order Platyctenea |
| platyctenean | (n) ctenophore have long tentacles and flattened body |
| Octene | n. [ See Octo-. ] (Chem.) Same as Octylene. [ 1913 Webster ] |