Actinal
Definition, Meaning & Examples
Part of speech adjective
Quick meaning: Actinal is an adjective meaning (zoology) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
Meaning
(zoology) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
More Meanings
- (zoology) Pertaining to the axis of rotational symmetry in radiate animals.
Example Sentences
[Professor Agassiz] gives the names of two axes of the animals; that around which the motion of the animal occurs is the actinal axis .
The so-called mouth is always placed at one of these poles, and from it radiate the most prominent organs, in consequence of which I have called this side of the body the oral or actinal area .
Antonyms for actinal
Common opposites include abactinal.
Related Words
Related dictionary entries include plastron, oral, abactinal, adnate, actinogonidial, radulate.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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