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.
Scientific
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pertaining to science. 2. an educated guess passed off as a well thought out explaination that uses large words and concepts often unkonwn to everyone in the room. 3. a plausible explaination for something not easily explained given to the dismay and perhaps delight of those who are present.
Scientific meaning & definition 1 of Scientific.
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