variability

Derived form of variable, from Old French variable; see variable +‎ -ity.

• (UK) IPA^(key): /ˌvɛəɹ.i.ə.ˈbɪl.ə.ti/, /-ɪ.ti/

• Audio (Southern England)

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• (US, Mary–marry–merry distinction) IPA^(key): /ˌvæɹ.i.ə.ˈbɪl.ə.ti/, /-ɪ.ti/
• (US, Mary–marry–merry merger) IPA^(key): /ˌvɛɹ.i.ə.ˈbɪl.ə.ti/, /-ɪ.ti/

variability (countable and uncountable, plural variabilities)

1. The state or characteristic of being variable.
2. The degree to which a thing is variable. In data or statistics this is often a measurement of distance from the mean or a description of data range.

• variableness

• “variability”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “variability”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.