The quality, state, or degree of being variable or changeable.(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 "variability" in a sentence
"It is well known that the term variability is commonly employed in the broadest possible sense."
"Meanwhile, the short-term variability in U.S. surface temperatures has been decreasing since 1800, suggesting a more stable climate."
"The authors used statistical methods rather than modeling to tease out the impacts from factors that contribute to shorter-term variability for five of the most-used temperature records."