The quality or state of being variable; variableness.
The power possessed by living organisms, both animal and vegetable, of adapting themselves to modifications or changes in their environment, thus possibly giving rise to ultimate variation of structure or function.
Never think that lack of variability is stability. Don't confuse lack of volatility with stability, ever. Nassim Nicholas Taleb
In particular, Australia, because of its ancient geography, soil profile and distinctive weather patterns, is more adversely affected by climate variability than some other continents. Peter Garrett
Variability is the law of life, and as no two faces are the same, so no two bodies are alike, and no two individuals react alike and behave alike under the abnormal conditions which we know as disease. William Osler
Sudden resolutions, like the sudden rise of mercury in a barometer, indicate little else than the variability of the weather. David Hare
That the variability of an organism to a certain extent is a constant and certain condition of life we admit, otherwise there would be no distinguishable individuals of a species. Richard Owen