Actinic ray

a ray of light of short wavelengths, as ultraviolet or violet, that produces photochemical effects.
historical examples

elusive, delicate, alluring—it is the actinic ray that imparts vitality.
little journeys to the homes of the great, vol. 1 of 14 elbert hubbard

the question is, then, what teaching concern in america supplies the best quality of actinic ray?
little journeys to the homes of great teachers elbert hubbard

an actinic ray from the lantern striking the plate will fog it.
harper’s round table, may 28, 1895 various

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  • Actinide

    any element of the . noun a member of the actinide series also called actinon actinide ac·ti·nide (āk’tə-nī’d) n. any of a series of chemically similar radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium). actinide (āk’tə-nīd’) any of a series of chemically similar metallic elements with atomic numbers ranging from 89 […]

  • Actinide series

    the series of radioactive elements that starts with actinium and ends with lawrencium. noun a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium

  • Actiniform

    having a radiate form. historical examples the animals are actiniform, furnished with numerous cleft tentacula, in the centre of which is the polygonal mouth. the ocean world: louis figuier adjective another word for actinoid

  • Actinin

    a contractile protein of muscle.

  • Actinism

    the property of radiation by which chemical effects are produced. historical examples in summer, when the maturing process advances, light and heat increase, and actinism relatively declines. the reason why anonymous in the autumn, when the ripening period arrives, light and actinism give way to a greater ratio of heat. the reason why anonymous the […]

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