variability

n. state of being given to variation, changeability, fickleness

The term "", "the state or characteristic of being variable", may be applied to many different subjects:Solar vanHuman variabilityGenetic variabilityHeart rate variabilitySpatial variabilityStatistical variabilityClimate variability
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Noun
1. the quality of being subject to variation
(synonym) variableness, variance
(antonym) invariability, invariableness, invariance
(hypernym) changeableness, changeability
(hyponym) variedness
2. a quality of variability and lack of uniformity
(synonym) unevenness
(antonym) evenness, invariability
(hypernym) irregularity, unregularity
(hyponym) jaggedness

(n.)
The quality or state of being variable; variableness.
  

(n.)
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.
  

one of the four characteristics (with inseparability, intangibility and perishability) which distinguish a service; variability expresses the notion that a service may vary in standard or quality from one provider to the next or from occasion to the next. Also referred to as Heterogeneity. See Services Marketing; Inseparability; Intangibility; Perishability.