Actinal



having tentacles or rays.
pertaining to the oral area from which the arms or tentacles radiate.
Historical Examples

The plane of the actinal surface at first meets that of the abactinal at an acute or nearly right angle.
The Works of Francis Maitland Balfour, Volume II (of 4) Francis Maitland Balfour

The larval mouth is transported into the centre of the actinal disc.
The Works of Francis Maitland Balfour, Volume II (of 4) Francis Maitland Balfour

It is situated on the actinal or ventral surface of the future starfish, and is related to the left peritoneal vesicle.
The Works of Francis Maitland Balfour, Volume II (of 4) Francis Maitland Balfour

adjective
of or denoting the oral part of a radiate animal, such as a jellyfish, sea anemone, or sponge, from which the rays, tentacles, or arms grow
possessing rays or tentacles, as a jellyfish

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