abactinal

2 definitions found

abactinal - Collaborative International Dictionary of English v.0.48 :

  Abactinal \Ab*ac"ti*nal\ ([a^]b*[a^]k"t[i^]*nal), a. [L. ab + E.
     actinal.] (Zool.)
     Pertaining to the surface or end opposite to the mouth in a
     radiate animal; -- opposed to actinal. "The aboral or
     abactinal area." --L. Agassiz.
     [1913 Webster]

abactinal - WordNet (r) 2.1 (2005) :

  abactinal
      adj 1: (of radiate animals) located on the surface or end
             opposite to that on which the mouth is situated [ant:
             actinal]