actinal

American

[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.

actinal British

/ 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

actinally adverb

Etymology

Origin of actinal

1857; actin- + -al ¹; coined, with sense of actinal def. 2, by Louis Agassiz

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pertaining to the surface or end opposite to the mouth in a radiate animal;Ðopposed to actinal.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023