COLLODIONS

Noun

collodions

plural of collodion

Source: Wiktionary

COLLODION

Col*lo"di*on, n. Etym: [Gr. Colloid.] (Chem.)

Definition: 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 containing for wounds; but its chief application is as a vehicle for the sensitive film in photography. Collodion process (Photog.), 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.

Source: Webster’s Unabridged Dictionary 1913 Edition