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actinic

American  
[ak-tin-ik] / ækˈtɪn ɪk /

adjective

  1. pertaining to actinism.


actinic British  
/ ækˈtɪnɪk /

adjective

  1. (of radiation) producing a photochemical effect

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of actinic

First recorded in 1835–45; actin- + -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Two welders, their eyes protected from the blinding actinic rays of a powerful arc by brown glasses, worked behind them.

From Slate ● Jun. 20, 2020

Dr. Lim said the dermatology academy’s position is that actinic keratoses should be treated, as it is impossible to know which ones will turn into cancer, but some specialists are questioning whether that’s necessary.

From New York Times ● Nov. 20, 2017

Ms. Rought said her “rule of thumb” was that 20 percent of actinic keratoses progress to cancer.

From New York Times ● Nov. 20, 2017

Prosecutors say Kolbusz falsely diagnosed patients with actinic keratosis, or sun-induced skin lesions that can potentially become cancerous.

From Washington Times ● Oct. 21, 2014

Sen′sitise, to render sensitive, to render capable of being acted on by actinic rays of light.—n.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

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