Etymology

From Ancient GreekCategory:English terms derived from Ancient Greek#ACTINIC ἀκτίς, ἀκτῖν- (aktís, aktîn-, “ray”) +‎ -icCategory:English terms suffixed with -ic#ACTINIC.

Pronunciation

• IPA^(key): /ækˈtɪn ɪk/Category:English terms with IPA pronunciation#ACTINIC
• Rhymes: -ɪnɪkCategory:Rhymes:English/ɪnɪk#ACTINICCategory:Rhymes:English/ɪnɪk/3 syllables#ACTINIC

• Audio (Southern England):

  (file)

  Category:English terms with audio pronunciation#ACTINIC

Adjective

actinic (not comparable)Category:English lemmas#ACTINICCategory:English adjectives#ACTINICCategory:English uncomparable adjectives#ACTINICCategory:English entries with incorrect language header#ACTINICCategory:Pages with entries#ACTINICCategory:Pages with 2 entries#ACTINIC

1. Related to radiation; used most often in reference to light, especially in the ultraviolet range.
2. (by extension) Harsh and bright, especially blindingly so.
   • 1999, Jody Lynn Nye, School of Light:

     He bounded over cresting waves that shone in the actinic glare.

     Category:English terms with quotations#ACTINIC

   • 2019 December 9, qntm, “Wild Light”, in There Is No Antimemetics Division, →ISBN, page 191:

     And what actinic, mind-wrenching form could the countermeme take? How could human hands assemble something so devastatingly powerful and hold it steady; what human mind could wield it without exploding from the inside out?

     Category:English terms with quotations#ACTINIC

3. (medicineCategory:en:Medicine#ACTINIC) Caused by extensive exposure to ultraviolet light.

   In medicine, actinic keratoses usually occur in sundamaged skin and exhibit hyperkeratosis.Category:English terms with usage examples#ACTINIC

   ^[1]

4. (chemistry, photography) Of or relating to actinism, the range of photochemical effects produced by exposure to electromagnetic radiation, particularly sunlight.
   • 1883, Abraham Cowley Malley, Micro-photography: Including a Description of the Wet Collodion and Gelatino-Bromide Processes, page 32:

     It should be borne in mind that the actinic power of the sun is subject to considerable variations, due to its elevation above the horizon.

     Category:English terms with quotations#ACTINIC

   • 1943 May and June, Chas. S. Lake, “Some Continental Travel Experiences (1922-1939)—III”, in Railway Magazine, page 141:

     I got my picture, and it turned out quite a good one, despite the rather poor light which at that time of day, 7 p.m., was lacking in actinic value.

     Category:English terms with quotations#ACTINIC

5. Composed of actin.

References

• “actinic”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

Anagrams

• cantici

Etymology

Borrowed from FrenchCategory:Romanian terms borrowed from French#ACTINICCategory:Romanian terms derived from French#ACTINIC actinique.

Adjective

actinic m or n (feminine singular actinică, masculine plural actinici, feminine/neuter plural actinice)Category:Romanian lemmas#ACTINICCategory:Romanian adjectives#ACTINICCategory:Romanian entries with incorrect language header#ACTINICCategory:Pages with entries#ACTINICCategory:Pages with 2 entries#ACTINIC

1. actinic