noun. Specifically, in electricity, a substance used in the manufacture of the electrodes of magnetite arc-lamps the function of which is to reduce the rate at which the terminals are consumed.

noun. One who or that which restrains; specifically, in photography, a chemical which is added to the developer for the purpose of retaṙding its action, especially in the case of an over-exposed plate, or in order to obtain greater contrast or intensity in a naturally weak plate. Acids, sodium sulphite, bromides, and other substances act as restrainers.

noun. One who, or that which, restrains.

noun. Something that restrains

noun. A chemical compound (such as potassium bromide), added to a developer to prevent fogging

noun. a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film

noun. a person who directs and restrains

"A restrainer is the organizational equivalent of tripping a runner in a foot race - the more often they are tripped, the poorer their performance will be."

restraining order  restraining powers  restraining statute  

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