actinic

[ ak-tin-ik ]

adjective

1. pertaining to actinism.

actinic

/ ækˈtɪnɪk /

adjective

1. (of radiation) producing a photochemical effect

Derived Forms

• acˈtinically, adverb
• ˈactinˌism, noun

Other Words From

• ac·tini·cal·ly adverb
• nonac·tinic adjective
• nonac·tini·cal·ly adverb
• unac·tinic adjective

Word History and Origins

Origin of actinic¹

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

Word History and Origins

Origin of actinic¹

C19: from actino- + -ic

Example Sentences

It takes a dark olive tint, which is very non-actinic, the shadows meanwhile remaining very clear.

From Project Gutenberg

Retouching means covering the spots in the film with some non-actinic substance.

From Project Gutenberg

There was a soundless flash beside me, a tiny level beam leaped down the corridor—that horribly intense actinic white beam.

From Project Gutenberg

They have power to cause chemical changes, hence are known as the chemical or actinic rays.

From Project Gutenberg

There may be more of them but they never have the real actinic taste of the natural egg.

From Project Gutenberg

Related Words

• synthetic