Medical Dictionary

basal body temperature

noun

medical Definition of basal body temperature

:the temperature of the body at rest that is typically taken immediately after waking from sleep
Note: The basal body temperature of a woman slightly rises during ovulation and may be tracked to estimate when future ovulation will occur.
  • When she ovulates, her basal body temperature rises about one degree and remains elevated until her next period.
  • —Jane E. BrodyThe New York Times1 Jan. 2002

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