silver-bromide

silver bromide

noun Chemistry.
a yellowish, water-insoluble powder, AgBr, which darkens on exposure to light, produced by the reaction of silver nitrate with a bromide: used chiefly in the manufacture of photographic emulsions.

Origin:
1875–80

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World English Dictionary
silver bromide
 
n
a yellowish insoluble powder that darkens when exposed to light: used in making photographic emulsions. Formula: AgBr

Collins English Dictionary - Complete & Unabridged 10th Edition
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Silver-bromide is always a great word to know.
So is ort. Does it mean:
a scrap or morsel of food left at a meal.
a stew of meat, vegetables, potatoes, etc.
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