autoregulation
noun
au·to·reg·u·la·tion
| \ ˌȯt-ō-ˌreg-yə-ˈlā-shən
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Medical Definition of autoregulation
: the maintenance of relative constancy of a physiological process by a bodily part or system under varying conditions
especially
: the maintenance of a constant supply of blood to an organ in spite of varying arterial pressure
the influence of vasoactive agents on autoregulation of renal flow — Science