Meaning of bioavailability | Babel Free

Definitions

1. The extent to which a substance is molecularly available to cells and tissues in a living organism, which depends on factors such as solubility, pH level, and presence of enzymes and cofactors; for example, even if one's ingestion of vitamin B₁₂ is average/typical, one might nonetheless have B₁₂ deficiency if one has poor metabolism of this particular vitamin.
   countable, uncountable
2. The amount of drug or nutrient which reaches the site of physiological activity after administration.
   countable, uncountable

Equivalents

Examples

“poor/low oral bioavailability”

CEFR level