: any of several colloidal light-sensitive preparations of silver and protein used in aqueous solution on mucous membranes as antiseptics
Word History
First Known Use
1928, in the meaning defined above
Medical Definition
silver protein
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 alsomild 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