adj. [Gr. aktis, ray]
1. Star-shaped; pertaining to that area of a radiate organism from which arms or tentacles radiate.
2. (CNIDARIA: Anthozoa)
Oral area of sea anemones.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • Actinal — Ac ti*nal, a. [Gr. ?, ?, ray.] (Zo[ o]l.) Pertaining to the part of a radiate animal which contains the mouth. L. Agassiz. [1913 Webster] || …   The Collaborative International Dictionary of English

  • actinal — [ak′ti nəl, ak tī′nəl] adj. [ ACTIN(O) + AL] of the oral region of a radiate animal, from which the rays or tentacles grow …   English World dictionary

  • actinal — adjective a) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish. The so called mouth is always placed at one of these poles, and from it radiate the most prominent organs, in consequence of …   Wiktionary

  • actinal — actinally, adv. /ak teuh nl, ak tuyn l/, adj. Zool. 1. having tentacles or rays. 2. pertaining to the oral area from which the arms or tentacles radiate. [1857; ACTIN + AL1; coined, with sense of def. 2, by Louis Agassiz] * * * …   Universalium

  • -actinal — ac·ti·nal …   English syllables

  • actinal — ac·ti·nal …   English syllables

  • actinal — /ˈæktənəl/ (say aktuhnuhl) adjective Zoology (of tentacles or rays) having a radial symmetry. {actin(o) (def. 2) + al1} –actinally, adverb …   Australian English dictionary

  • actinal — adjective (of radiate organisms) located on the surface or end on which the mouth is situated • Ant: ↑abactinal • Topics: ↑organism, ↑being …   Useful english dictionary

  • -actinal — | ̷ ̷ ̷ ̷ ̷ ̷, ˌ ̷ ̷| ̷ ̷ ̷ ̷ adjective combining form Etymology: Greek aktin , aktis ray + English al : actine …   Useful english dictionary

  • Abactinal — Ab*ac ti*nal ([a^]b*[a^]k t[i^]*nal), a. [L. ab + E. actinal.] (Zo[ o]l.) Pertaining to the surface or end opposite to the mouth in a radiate animal; opposed to {actinal}. The aboral or abactinal area. L. Agassiz. [1913 Webster] …   The Collaborative International Dictionary of English

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.