The rate at which a drug, trace element, etc. enters the bloodstream and is circulated to specific organs or tissues.
Webster's New World
The degree to which or rate at which a drug or other substance is absorbed or becomes available at the site of physiological activity after administration.
American Heritage Medicine
(pharmacology) The amount of drug which reaches the site of physiological activity after administration.
Other Word Forms of Bioavailability
Origin of Bioavailability
bio- + availability
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