Oral

Wiktionary Word definitions in Wiktionary
a. 1 (context zoology English) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish. 2 (context zoology English) Pertaining to the axis of rotational symmetry in radiate animals.

WordNet Word definitions in WordNet
adj. (of radiate organisms) located on the surface or end on which the mouth is situated [ant: abactinal ]

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Actinal \Ac"ti*nal\, a. [Gr. ?, ?, ray.] (Zo["o]l.) Pertaining to the part of a radiate animal which contains the mouth. --L. Agassiz. [1913 Webster] ||