chronotype

noun

chro·no·type | \ ˈkrō-nə-ˌtīp

How to pronounce chronotype (audio)

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Medical Definition of chronotype

: the internal circadian rhythm or body clock of an individual that influences the cycle of sleep and activity in a 24-hour period It is also true that we are increasingly sleeping outside of the times normally dictated by our internal circadian clocks (our "chronotype"). — Science, 1 June 2012

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