“actinal”的英文意思_释义_用法

单词

actinal

释义

actinal, a. Zool.|ækˈtaɪnəl, ˈæktɪnəl|
[f. Gr. ἀκτίς, ἀκτῖν-α ray + -al¹.]
Pertaining to that part or surface of a radiate animal which contains the mouth and surrounding organs, as the lower side of a starfish; a term introduced by L. Agassiz in connexion with his view that the body of a radiate animal is essentially a sphere, with the mouth or actinostome at one of the poles.
1857L. Agassiz Contrib. Nat. Hist. N. Amer. IV. 376 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, and the opposite side the aboral or abactinal area.1872Dana Corals i. 22 The upper extremity (of an actinia) is called the actinal end, since it bears the tentacles or rays.

英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

相关内容：

“actinal”的英文意思

“布拉格定律”英文翻译

“acorn”的英文意思

“布安氏”英文翻译

“acrocentric”的英文意思

“布奇利氏乳剂”英文翻译

相关推荐