The alkali concentration or alkaline quality of an alkali-containing substance.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "alkalinity" in a sentence
"Reducing alkalinity is apparently leading to other problems, however."
"If you search hard enough, you can still get your hands on fairly tasty produce, but with every passing harvest the fruits of the earth are losing more and more of their vitality and alkalinity, which is all too evident in their smell and taste."
"Nanoparticles are used in agriculture to increase potency per weight by encapsulating pesticides, fungicides, soil treatments, time release compounds, compounds active only under certain conditions such as alkalinity inside an insect, e.g., the Bt toxin used in genetically-modified seeds."