transitive. Chiefly Photography. To treat or fill with mercury vapour or with a mercury compound. Cf. mercurialization, n. 2. Obsolete.

transitive. To chemically change (esp. a photographic film or plate) by means of exposure to light. Cf. actinic, adj. 1, actinism, n. 1.

transitive. To coat or impregnate (a surface or material such as glass or paper) with albumen or (formerly in Photography) with an albuminous…

transitive. Photography. To make (photographic paper, film, emulsion, etc.) sensitive to light or other radiation.

Photography. To saturate (paper) with wax. Obsolete.

Photography. transitive. To chemically treat (a photographic film or plate) in order to reveal the latent image recorded on it.

transitive. To make sensitive; = sensitize, v.

transitive. In dry collodion processes: to impregnate (a photographic plate) with organic matter (such as albumen, gelatin, gum arabic, etc.)…

Photography. To coat the back of (a plate) with some substance which will absorb light and so prevent halation.

Photography. To impregnate (paper, etc.) with a solution of a salt or a mixture of salts.

Photography. To render (a plate, etc.) sensitive to light; to sensitize.

transitive. To treat with talc; to coat (a photographic plate) with talc; to dust (the skin) with talcum powder.

transitive. To infuse or impregnate with alum; to treat or coat with alum.

Photography. To remove the silver image from (a negative or print) after development; bleach-out process: a system of colour printing, now disused…

Photography. To expose to the fumes of ammonia.

transitive. To make orthochromatic.

In certain technical uses. Photography. To cover over with a very thin layer.

transitive. Photography. To give a pre-exposure to (a film, plate, etc.).

transitive. To render hypersensitive. spec. Photography. To increase the speed of (a photographic film or plate, or its emulsion) by immersion in a…

transitive. To render (a photographic plate, film, etc.) panchromatic. Also intransitive.