Last Updated：2025/11/23

Dictionary quizzes to help you remember vocabulary

(zoology) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish. / (zoology) Pertaining to the axis of rotational symmetry in radiate animals.

音声機能が動作しない場合はこちらをご確認ください

See correct answer

actinal

Edit Histories（0）

Source Word

actinal

Adjective

(zoology) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish. / (zoology) Pertaining to the axis of rotational symmetry in radiate animals.

Japanese Meaning

放射相称動物（例：ヒトデなど）の口の周囲や側面、表面に関する / 放射動物の回転対称軸に関する

What is this buttons?

The biologist examined the actinal surface of the starfish under a microscope.

Google Translation / DeepL Translation

生物学者は顕微鏡でヒトデの口側の表面を調べた。

Details

Sense（1）

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 ...

Google Translation / DeepL Translation