abactinal
Ab*ac"ti*nal, a. Etym: [L. ab + E. actinal.] (Zoöl.) Defn: Pertaining to the surface or end opposite to the mouth in a radiate animal; -- opposed to actinal. "The aboral or abactinal area." L. Agassiz.
Ab*ac"ti*nal, a. Etym: [L. ab + E. actinal.] (Zoöl.) Defn: Pertaining to the surface or end opposite to the mouth in a radiate animal; -- opposed to actinal. "The aboral or abactinal area." L. Agassiz.