noun
- a syrupy solution of nitrocellulose in ether and alcohol, used in photography and medicine
Usage: technical
Examples
- The photographer prepared the glass plate with collodion before exposure.
- Collodion was commonly used in 19th-century wet-plate photography.
- The doctor applied collodion to seal the small wound.
- Early photographers had to work quickly before the collodion dried.
- Medical collodion forms a protective film over cuts and scrapes.