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单词 actine
释义

Definition of actine in English:

actine

noun ˈaktiːn
  • 1A proposed unit of the intensity of solar radiation. rare. Now historical.

  • 2Zoology. Each of the rays or points of a sponge spicule.

Origin

Mid 19th century; earliest use found in John Herschel (1792–1871), mathematician and astronomer. From ancient Greek ἀκτῖν-, ἀκτίς ray. With use in sense 1 compare quot. 1837, and also German †Actine.

 
 

Definition of actine in US English:

actine

nounˈaktiːn
  • 1A proposed unit of the intensity of solar radiation. rare. Now historical.

  • 2Zoology. Each of the rays or points of a sponge spicule.

Origin

Mid 19th century; earliest use found in John Herschel (1792–1871), mathematician and astronomer. From ancient Greek ἀκτῖν-, ἀκτίς ray. With use in sense 1 compare quot. 1837, and also German † Actine.

 
 
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更新时间:2024/12/23 8:30:51