photographic emulsion

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a light-sensitive coating on paper or film;
consists of fine grains of silver bromide suspended in a gelatin
• Syn:
emulsion
• Derivationally related forms:
emulsify (for: emulsion)
• Hypernyms:
coating, coat
• Substance Meronyms:
silver nitrate, silver bromide