Related Words

Protective Toning: Toning process used to protect black and white prints from fading and give archival permanence. Usually used selenium or gold toners.

Protective Relay: A relay, the principal function of which is to protect service from interruption, or to prevent or limit damage to apparatus.

Protective Well: A vertical pipe with a relatively large opening (intake) in the bottom. It is used with the air acoustic ranging sensor and electronic processing (filtering) technique to minimize the nonlin . . . View Full Definition

Self Toning Paper: Obsolete silver chloride paper used for contact printing in daylight.

Toning: Method of soaking the print in selenium or similar chemical(s) to help give the print an overall feeling of 'richness'.

Sulfide Toning: Conversion of a black metallic silver image into a brown dye image. Usually known as sepia toning.

Protective Put Buying Strategy: A strategy that involves buying a put option on the underlying security that is held in a portfolio. Related: Hedge option strategies.

Protective Factors: Strengths and resources that appear to mediate or serve as a 'buffer' against risk factors that contribute to vulnerability to maltreatment or against the negative effects of maltreatment ex . . . View Full Definition

Copper Toning: Chemical process used for toning monochrome prints. See toners.

Color Toning: System of changing the color of a black and white photograph by converting black metallic silver into a colored compound.