Collodiochloride

/ˌkɒloʊdioʊˈklɔːraɪd/ noun

Definition

A chemical compound derived from collodion containing chlorine, used in early photography or chemistry.

Etymology

From 'collodion' + 'chloride' (a compound with chlorine). A technical chemistry term from the 19th-20th century era of experimental photographic chemistry.

Kelly Says

This word is so obscure it's barely used even in chemistry textbooks today—it represents a dead-end in photographic chemistry, replaced by better compounds that actually worked reliably.

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