abactinal

From ab- +‎ actinal.

• (General American) IPA^(key): /æˈbæk.tə.nl̩/, /ˈæˌbæk.tə.nl̩/, /ˌæˌbækˈtaɪ.nl̩/, /ˈæˌbækˌtaɪ.nl̩/

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abactinal (comparative more abactinal, superlative most abactinal)

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

   Antonym: actinal

   • 1857, 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.

• Hyphenation: a‧bac‧ti‧nal

abactinal m or f (plural abactinais)

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

• IPA^(key): /abaɡtiˈnal/ [a.β̞aɣ̞.t̪iˈnal]
• Rhymes: -al
• Syllabification: a‧bac‧ti‧nal

abactinal m or f (masculine and feminine plural abactinales)

1. abactinal