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Definition of "bioavailability" [bioavailability]

  • 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. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "bioavailability" in a sentence
  • "Oral doses are rapidly and completely absorbed, with peak levels reached after 29 to 90 minutes; however, bioavailability is low due to a hepatic first-pass effect. 6 The pharmacokinetics are not significantly affected by gender, age, renal failure or hemodialysis beginning one hour after drug administration."
  • "And researchers continue to enhance "bioavailability"-the proportion of the drug's active ingredients that actually reach the patient's relevant tissues."
  • "The sprouting process is also said to boost "bioavailability" - or ability for the body to make use - of certain nutrients such as calcium."