actinal
1 of 2adjective
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 adverb
ˈak-tə-nə-lē
(ˈ)ak-¦tī-nᵊl-ē
-actinal
2 of 2adjective 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