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Meaning of bioavailability

bi•o•a•vail•a•bil•i•ty

Pronunciation: (bī"ō-u-vā"lu-bil'i-tē), [key]
— n. Biochem.
  1. the extent to which a nutrient or medication can be used by the body.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.