actinal

1 of 2

adjective

ac·​ti·​nal

ˈak-tə-nəl,

(ˈ)ak-¦tī-nᵊl

: belonging to the part of a radiate animal from which the tentacles or arms radiate and where the mouth is situated

—often used as an equivalent of oral

actinally

ˈak-tə-nə-lē

(ˈ)ak-¦tī-nᵊl-ē

adverb

-actinal

2 of 2

adjective combining form

-ac·​ti·​nal

¦ak-tə-nəl,

ˌak-¦tī-nᵊl

: -actine

Word History

Etymology

Adjective

Greek aktīn-, aktís "ray, beam, spoke of a wheel" + -al entry 1

Adjective combining form

Greek aktīn-, aktís "ray, beam, spoke of a wheel" + -al entry 1

First Known Use

Adjective

1857, in the meaning defined above

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