Link to this page adjective: Of, relating to, or located on the element of a radially symmetric animal that the tentacles radiate and/or part in which the dental area is available. with respect to the side or surface around the mouth in an animal with radial symmetry such a starfish. Pertaining to the axis of rotational balance in radiate creatures. regarding the section of a radiate animal which contains the mouth. (of radiate organisms) on the surface or end upon which the lips is situated View More others: In zoology: Pertaining to the medial side of a radiate pet containing the mouth: comparable to oral, since the pole, area, or aspect of the human anatomy whence parts radiate can also be that where lips is found: the contrary of abactinal or aboral. In general, having tentacles or rays. View More Related Sources Definition for "actinal" Of, relating to, or located on the element… View More Sentence for "actinal" [Footnote: When reference is made to… View More Cross Reference for "actinal"