Main Entry: silver protein

Function: noun

: any of several colloidal light-sensitive preparations of silver and protein used in aqueous solution on mucous membranes as antiseptics and classified by their efficacy and irritant properties: as a : a preparation containing 19 to 23 percent of silver and consisting of dark brown or almost black shining scales or granules—called also mild silver protein b : a more irritant preparation containing 7.5 to 8.5 percent of silver and consisting of a pale yellowish orange to brownish black powder—called also strong silver protein