English

Adjective

abactinal ‎(comparative more abactinal, superlative most abactinal)

1. (zoology) Pertaining to the surface or end opposite to the mouth in a radiate animal.
   • (Can we date this quote?), Louis Agassiz, Contributions to Natural History, volume 4, page 376:

     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.

Translations

Antonyms

• actinal

Portuguese

Adjective

abactinal m, f ‎(plural abactinais, comparable)

1. (zoology) abactinal (pertaining to the surface or end opposite to the mouth in a radiate animal)