actinal

Valid in Scrabble

Scrabble points
9
Words With Friends
12
Letters
7

Definition of actinal

2 senses · 1 part of speech · etymology included

adj

  1. Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
    “The so-called mouth is always placed at one of these poles, and from it radiate the most prominent organs, in consequence of which I have called this side of the body the oral or actinal area ...”
See all 2 definitions

adj

  1. Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
    “The so-called mouth is always placed at one of these poles, and from it radiate the most prominent organs, in consequence of which I have called this side of the body the oral or actinal area ...”
  2. Pertaining to the axis of rotational symmetry in radiate animals.
    “[Professor Agassiz] gives the names of two axes of the animals; that around which the motion of the animal occurs is the actinal axis ...”

Definitions from Wiktionary, CC BY-SA.

Etymology

From Ancient Greek ἀκτίς, ἀκτῖν- (aktís, aktîn-, “ray”) + -al. The usage was coined by Louis Agassiz (See quotations below.).

Anagrams of actinal

4 plays · some not in Scrabble

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