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.
Tappit hen
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A measuring pot holding one quart (according to some,
three quarts); -- so called from a knob on the lid, thought to resemble
a crested hen.
Tappit hen meaning & definition 1 of Tappit hen.
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