ab·​ac·​ti·​nal | \ (ˈ)a-¦bak-tə-nᵊl, ¦a-ˌbak-¦tī-nᵊl \

Definition of abactinal

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

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Other Words from abactinal

abactinally adverb

First Known Use of abactinal

1857, in the meaning defined above

History and Etymology for abactinal

ab- entry 1 + actinal

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The first known use of abactinal was in 1857

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Cite this Entry

“Abactinal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abactinal. Accessed 10 Jul. 2020.

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