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Medical Term:


Pronunciation: fiz′ē-ō-loj′ik, -loj′i-kăl


  1. Relating to physiology.
  2. Normal, as opposed to pathologic; denoting the various vital processes.
  3. Denoting something that is apparent from its functional effects rather than from its anatomic structure (a physiologic sphincter).
  4. Denoting a dose or the effects of such a dose (of a chemical agent that either is or mimics a hormone, neurotransmitter, or other naturally occurring agent) that is within the range of concentrations or potencies that would occur naturally.