lye

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Related to Alkaline liquor: alkaline metal

lye

lye, name commonly used for a strongly alkaline solution. It originally meant a solution of potassium carbonate (potash) prepared by leaching wood ashes with water, but now the name also means a solution of sodium hydroxide or potassium hydroxide. Lye is also used to refer to the undissolved solute. Common household lye is usually sodium hydroxide. Lye should be used with caution as it is caustic and poisonous.
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lye

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(inorganic chemistry)
A solution of potassium hydroxide or sodium hydroxide used as a strong alkaline solution in industry.
The alkaline solution that is obtained from the leaching of wood ashes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

lye

1. any solution obtained by leaching, such as the caustic solution obtained by leaching wood ash
2. a concentrated solution of sodium hydroxide or potassium hydroxide
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
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