# bioavailability

> English word · Noun · frequency rank #48,619

## 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.
2. 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.

## Etymology
From bio- + availability.

## Common misspellings (21)
`bbioavailability`, `biaovailability`, `bioaavilability`, `bioavaialbility`, `bioavailabbility`, `bioavailabiilty`, `bioavailabilitty`, `bioavailabilityy`, `bioavailabiliyt`, `bioavailabillity`, `bioavailabiltiy`, `bioavailabliity`, `bioavailaiblity`, `bioavailbaility`, `bioavaillability`, `bioavaliability`, `bioavialability`, `bioavvailability`, `biovaailability`, `boiavailability`, `iboavailability`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bioavailability