actinal

English - Turkish

Definition of actinal in English Turkish dictionary

temsili

English - English

Definition of actinal in English English dictionary

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 which I have called this side of the body the oral or actinal area .

Pertaining to the axis of rotational symmetry in radiate animals

gives the names of two axes of the animals; that around which the motion of the animal occurs is the actinal axis .

(of radiate organisms) located on the surface or end on which the mouth is situated

Pertaining to the part of a radiate animal which contains the mouth

Hyphenation

ac·ti·nal

Etymology

() From Ancient Greek ἀκτίς, ἀκτῖν- (“actis, actin- (ray)”) + -al. The usage was coined by Professor Louis Agassiz (see below).