actinic
adjective
ac·tin·ic
ak-ˈti-nik 
: of, relating to, resulting from, or exhibiting chemical changes produced by radiant energy especially in the visible and ultraviolet parts of the spectrum
actinic light
actinic keratosis
Examples of actinic in a Sentence
Recent Examples on the Web
According to Healthline, benign easy bruising, called actinic purpura or senile purpura is common.
—
Ross Rosenfeld, Newsweek, 26 Feb. 2025
This includes allergy testing and getting checked out by your dermatologist for actinic cheilitis.
—Isadora Baum, Allure, 19 Nov. 2024
Some were growths called actinic keratoses, which can sometimes turn into cancer.
—Amy Norton, SELF, 22 July 2024
Lastly, both Dr Walter and Dr Sheraz explain that chronic sun damage to your lips can also lead to something called actinic cheilitis, which presents in the same way as constantly chapped lips.
—Jacqueline Kilikita, refinery29.com, 31 Jan. 2024
Tretinoin is an effective treatment for fading actinic keratosis.15
Retin-A increases the skin's sensitivity to UV rays.
—Corey Whelan, Verywell Health, 1 July 2024
Other potential causes include a potential allergy, an irritant exposure or a serious type of sun damage known as actinic damage.
—The Enquirer, 27 Jan. 2024
What causes actinic keratoses: Dr. Jaliman notes that these arise from years of sun exposure.
—Daley Quinn, Women's Health, 8 Sep. 2023
The former can become scaly, dry, blister or flake, and lead to precancerous actinic keratosis while the latter can fade in color, dehydrate or become damaged and brittle.
—Scott Lafee, San Diego Union-Tribune, 11 July 2023
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Ross Rosenfeld, Newsweek, 26 Feb. 2025
This includes allergy testing and getting checked out by your dermatologist for actinic cheilitis.
—Isadora Baum, Allure, 19 Nov. 2024
Some were growths called actinic keratoses, which can sometimes turn into cancer.
—Amy Norton, SELF, 22 July 2024
Lastly, both Dr Walter and Dr Sheraz explain that chronic sun damage to your lips can also lead to something called actinic cheilitis, which presents in the same way as constantly chapped lips.
—Jacqueline Kilikita, refinery29.com, 31 Jan. 2024
Tretinoin is an effective treatment for fading actinic keratosis.15
Retin-A increases the skin's sensitivity to UV rays.
—Corey Whelan, Verywell Health, 1 July 2024
Other potential causes include a potential allergy, an irritant exposure or a serious type of sun damage known as actinic damage.
—The Enquirer, 27 Jan. 2024
What causes actinic keratoses: Dr. Jaliman notes that these arise from years of sun exposure.
—Daley Quinn, Women's Health, 8 Sep. 2023
The former can become scaly, dry, blister or flake, and lead to precancerous actinic keratosis while the latter can fade in color, dehydrate or become damaged and brittle.
—Scott Lafee, San Diego Union-Tribune, 11 July 2023
Cite this Entry
“Actinic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actinic. Accessed 22 Jul. 2025.
Copy CitationMedical Definition
actinic
adjective
ac·tin·ic
ak-ˈtin-ik
: of, relating to, resulting from, or exhibiting chemical changes produced by radiant energy especially in the visible and ultraviolet parts of the spectrum
actinic injury and carcinogenesis—The Journal of the American Medical Association
The Journal of the American Medical Associationactinic keratosis
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