Origin of alkalinity

First recorded in 1780–90; alkaline + -ity
Related formshy·per·al·ka·lin·i·ty, nounsu·per·al·ka·lin·i·ty, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for alkalinity

Historical Examples of alkalinity

British Dictionary definitions for alkalinity


  1. the quality or state of being alkaline
  2. the amount of alkali or base in a solution, often expressed in terms of pH
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

alkalinity in Medicine


  1. The alkali concentration or alkaline quality of a substance that contains alkali.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.