abactinal

adjective

ab·​ac·​ti·​nal

(ˈ)a-¦bak-tə-nᵊl,

¦a-ˌbak-¦tī-nᵊl

: of or relating to the surface or end opposite to the mouth in a radiate animal

abactinally adverb

Word History

Etymology

ab- entry 1 + actinal

First Known Use

1857, in the meaning defined above

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