[1] : The Collaborative International Dictionary of English v.0.48

abactinal \abac"tinal\ a^ba^k"ti^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
see also:
actinal 

[2] : WordNet (r) 2.0

abactinal
     adj : of radiate animals located on the surface or end opposite
           to that on which the mouth is situated ant: actinal
see also:
actinal 

Abactinal >> A Words
Abactinal, definition of term: Abactinal
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