alpha paper
A sensitized photographic paper that is coated with gelatin containing silver bromide…A sensitized photographic paper that is coated with gelatin containing silver bromide and chloride, and is used for obtaining positives by artificial light.
Meaning
1 senses(UK, dated, uncountable)A sensitized photographic paper that is coated with gelatin containing silver bromide and chloride, and is used for obtaining positives by artificial light.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable