A type of photographic material, specifically a film or glass plate coated with collodion, used in early photography techniques.

फोटोग्राफी में प्रयोग होने वाला एक प्रकार का फोटोसेंसर

English Usage: The collodian negative was a significant advancement in photographic technology during the 19th century.

Hindi Usage: कोलॉडियन नेगेटिव 19वीं सदी में फोटोग्राफी तकनीक में एक महत्वपूर्ण प्रगति थी।