lye

[ lahy ]
/ laɪ /

noun Chemistry.

a highly concentrated, aqueous solution of potassium hydroxide or sodium hydroxide.
any solution resulting from leaching, percolation, or the like.

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Origin of lye

before 900; Middle English lie, ley, Old English lēag; cognate with Dutch loog, German Lauge lye, Old Norse laug warm bath. See lave1

WORDS THAT MAY BE CONFUSED WITH lye

lie lye
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for lye

British Dictionary definitions for lye

lye
/ (laɪ) /

noun

any solution obtained by leaching, such as the caustic solution obtained by leaching wood ash
a concentrated solution of sodium hydroxide or potassium hydroxide

Word Origin for lye

Old English lēag; related to Middle Dutch lōghe, Old Norse laug bath, Latin lavāre to wash
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for lye

lye
[ lī ]

A strong alkaline solution or solid of potassium hydroxide or sodium hydroxide, made by allowing water to wash through wood ashes. It is used to make soap and drain and oven cleaners. Chemical formula: KOH or NaOH.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.