A a


    • US Pronunciation
    • US IPA
    • [ak-tuh-nl, ak-tahyn-l]
    • /ˈæk tə nl, ækˈtaɪn l/
    • US Pronunciation
    • US IPA
    • [ak-tuh-nl, ak-tahyn-l]
    • /ˈæk tə nl, ækˈtaɪn l/

Definitions of actinal word

  • adjective actinal 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 3
  • adjective actinal possessing rays or tentacles, as a jellyfish 3
  • adjective actinal of the oral region of a radiate animal, from which the rays or tentacles grow 3
  • adjective actinal having tentacles or rays. 1
  • adjective actinal pertaining to the oral area from which the arms or tentacles radiate. 1
  • adjective actinal (zoology) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish. 0

Information block about the term

Origin of actinal

First appearance:

before 1857
One of the 30% newest English words
1857; actin- + -al1; coined, with sense of def. 2, by Louis Agassiz

Historical Comparancy

Parts of speech for Actinal


actinal popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 61% of English native speakers know the meaning and use word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

actinal usage trend in Literature

This diagram is provided by Google Ngram Viewer

Antonyms for actinal

adjective actinal

  • abactinal — (of organisms showing radial symmetry) situated away from or opposite to the mouth; aboral

See also

Matching words

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