actinal

(akti nəl, ak tīnəl)

adjective

of the oral region of a radiate animal, from which the rays or tentacles grow

Origin: actin(o)- + -al

See actinal in American Heritage Dictionary 4

adjective
Of, relating to, or located on the part of a radially symmetric animal from which the tentacles radiate or the side where the oral area is found.

Related Forms:

  • acˈti·nal·ly adverb
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