Collodion /(?)/

Col·lo·di·on

Collodion

n.
  1. A solution of pyroxylin (soluble gun cotton) in ether containing a varying proportion of alcohol. It is strongly adhesive, and is used by surgeons as a coating for wounds; but its chief application is as a vehicle for the sensitive film in photography. (Chem.)

Phrases & Compounds
Collodion process
a process in which a film of sensitized collodion is used in preparing the plate for taking a picture.
Styptic collodion
collodion containing an astringent, as tannin.