adjective
"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-
Capable of neutralizing an acid. Bases are alkaline.
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Relating to an alkali compound.
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Having a pH greater than 7.
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Having a relatively low concentration of hydrogen ions.
Etymology
Origin of alkaline
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The site's pH of 12 makes it one of the most alkaline environments ever documented, creating conditions that are exceptionally difficult for life to endure.
From Science Daily
Darkness clings to the sky as thousands of bikers zoom across a dusty alkaline flat in search of a sunrise set, hoping to outpace the gash of periwinkle light bleeding over the horizon.
From Los Angeles Times
White bones of fallen equines rest in the alkaline meadows.
From Los Angeles Times
The process uses hot water mixed with an alkaline lye solution, so it’s more environmentally friendly than standard cremation, and usually more expensive.
From Los Angeles Times
He said that the DMK alkaline washes have been so effective that his scars have softened in his arm and nearly faded on his chest.
From Los Angeles Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
