collodion
UK[kəˈləʊdɪən]US[kəˈloʊdiən]
n
A syrupy, flammable solution of nitrocellulose in a mixture of alcohol and ether, which dries to a clear, elastic film when applied to the skin.
Morpheme Breakdown
coll
od
ion
coll
glue
od
resembling
ion
noun suffix
Etymology
The word collodion originates from the Greek kolla, meaning "glue," reflecting its primary property as an adhesive substance. The suffix -oeidēs, meaning "having the form of" or "resembling," was Latinized to -odes and later simplified to -od in English, indicating its glue-like quality. Combined with the Latin-derived noun suffix -ion, the term literally means "a substance resembling glue." This name was coined in the mid-19th century to describe the clear, adhesive film formed when the nitrocellulose solution dries, perfectly capturing its functional essence.
Analysis
Structure: coll (glue) + od (resembling) + ion (noun suffix)
coll (from Greek kolla, meaning "glue"); od (from Greek -oeidēs, meaning "resembling, form of"); ion (from Latin -io, a noun-forming suffix indicating a substance or result).
Examples
The old medical photograph was preserved on a glass plate coated with collodion.
Collodion was historically used as a wound dressing and in early photographic processes.
Artists sometimes use collodion to create a protective, glossy layer on their work.