actinic

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

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

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

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

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