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/æˈbæk.tə.nl̩/ · adjective
(zoology) Pertaining to the surface or end opposite to the mouth in a radiate animal..
The so-called mouth is always placed at one end of these poles, and from it radiate the most prominent organs, in consequence of which I have called this side of the body the oral or actinal area, and the opposite side the aboral or abactinal area.
Use abactinal when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Abactinal means (zoology) Pertaining to the surface or end opposite to the mouth in a radiate animal..
The closest synonym depends on the sentence and intended sense.
Possible antonyms include actinal.
The so-called mouth is always placed at one end of these poles, and from it radiate the most prominent organs, in consequence of which I have called this side of the body the oral or actinal area, and the opposite side the aboral or abactinal area.
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