Collodion

[Sarah]

A solution of pyroxylin (soluble gun cotton) in ethercontaining a varying proportion of alcohol. It is strongly adhesive,and is used by surgeons as a containing for wounds; but its chiefapplication is as a vehicle for the sensitive film in photography.Collodion process (Photog.), a process in which a film of sensitizedcollodion is used in preparing the plate for taking a picture.-- Styptic collodion, collodion containing an astringent, as tannin.