alkaline

[ al-kuh-lahyn, -lin ]

/ ˈæl kəˌlaɪn, -lɪn /

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See synonyms for alkaline on Thesaurus.com

adjective Chemistry.

of or like an alkali.

containing an alkali.

having the properties of an alkali.

having a pH value greater than 7.Compare acid (def. 5c).

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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of alkaline

First recorded in 1670–80; alkal(i) + -ine¹

Words nearby alkaline

alkali-loving, alkali metal, alkali metaprotein, alkalimeter, alkalimetry, alkaline, alkaline earth, alkaline-earth metal, alkaline phosphatase, alkaline soil, alkalinity

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use alkaline in a sentence

The answer, it seems, involves getting rid of the alkaline electrolyte that gave the batteries their name.
New battery chemistry results in first rechargeable zinc-air battery|John Timmer|December 31, 2020|Ars Technica
These lakes provide diverse habitats ranging from the freshwater lakes of Naivasha and Baringo to the semi-saline Lake Turkana, the saline alkaline lakes of Magadi, Elmentaita, Nakuru, and Bogoria, and the transient Lake Logipi.
Scientists are worried about the impact of Kenya’s Rift Valley lakes flooding|Sean Avery|October 16, 2020|Quartz
A chemical reaction between water and rock at sites like Lost City makes the water coming out of vents more alkaline than the water in the ocean, which has a higher concentration of positively charged hydrogen ions.
Life on Earth may have begun in hostile hot springs|Jack J. Lee|September 24, 2020|Science News
One end of a plastic tube pokes through the narrow end of the bottle, connected to a steady supply of a basic, or alkaline, solution just like a vent.
Life on Earth may have begun in hostile hot springs|Jack J. Lee|September 24, 2020|Science News

When Barge and colleagues injected an alkaline vent solution containing RNA nucleotides into an ocean-simulating bottle, individual RNA nucleotides linked up into short chains.
Life on Earth may have begun in hostile hot springs|Jack J. Lee|September 24, 2020|Science News
But California medicine will always be California medicine and people who want to be more alkaline will find a way.
Alkalinizing Someone to Improve His or Her Health Is Simple-Minded, Fatuous, and Dangerous|Kent Sepkowitz|January 29, 2014|DAILY BEAST
Things on the other side of the ledger, at a pH above 7, are alkaline (also called “basic” as in acid-base).
Alkalinizing Someone to Improve His or Her Health Is Simple-Minded, Fatuous, and Dangerous|Kent Sepkowitz|January 29, 2014|DAILY BEAST
Clearly this is not identical to the Organic Liaison supplement, as vinegar is acid, not alkaline.
The Scientology Diet?|Kim Masters|March 18, 2010|DAILY BEAST
Individual samples may be slightly alkaline, especially after a full meal.
A Manual of Clinical Diagnosis|James Campbell Todd
The reaction of human milk is slightly alkaline; of cow's, neutral or slightly acid.
A Manual of Clinical Diagnosis|James Campbell Todd
It has the odour of thyme, is sparingly soluble in water, but very soluble in alcohol, ether and in alkaline solutions.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 2|Various
The clear, colorless distillate had an alkaline reaction, and an odor resembling henbane or hemlock.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme
The alkaline solution reduced Fehling solution and ammoniacal silver nitrate, indicating the presence of a sugar.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)|William Anderson Syme

British Dictionary definitions for alkaline

alkaline

/ (ˈælkəˌlaɪn) /

adjective

having the properties of or containing an alkali

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 alkaline

alkaline

[ ăl′kə-lĭn, -līn′ ]

Capable of neutralizing an acid. Bases are alkaline.

Relating to an alkali compound.

Having a pH greater than 7.

Having a relatively low concentration of hydrogen ions.

alkaline

Origin of alkaline

Words nearby alkaline

Words related to alkaline

How to use alkaline in a sentence

British Dictionary definitions for alkaline

Scientific definitions for alkaline