An acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic.
Pasteboard
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A stiff thick kind of paper board, formed of several
single sheets pasted one upon another, or of paper macerated and
pressed into molds, etc.
Pasteboard meaning & definition 1 of Pasteboard.
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a type of thick cardboard made from sheets of paper that have been stuck together with glue
Pasteboard meaning & definition 2 of Pasteboard.
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