actinal
[ ak-tuh-nl, ak-tahyn-l ]
/ ˈæk tə nl, ækˈtaɪn l /
|
adjective Zoology.
having tentacles or rays.
pertaining to the oral area from which the arms or tentacles radiate.
Nearby words
acth, acth-producing adenoma, actin, actin filament, actin-, actinal, acting, acting area, actinia, actinian, actinic
Related forms
ac·ti·nal·ly, adverbDictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for actinal
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 BalfourThe larval mouth is transported into the centre of the actinal disc.
The Works of Francis Maitland Balfour, Volume II (of 4)|Francis Maitland BalfourThe 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
British Dictionary definitions for actinal
actinal
/ (ˈæktɪnəl, ækˈtaɪnəl) /
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
Derived Forms
actinally, adverbWord Origin for actinal
C19: see actino-, -al 1
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