Definition of actine in English:

actine

noun

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

  • 2Zoology
    Zoology. 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.

Pronunciation:

actine

/ˈaktiːn/