bioavailability

Questions

What does bioavailability mean?

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.

Where does bioavailability come from?

Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βῐ́ος (bĭ́os) Ancient Greek βῐο- (bĭo-)der. English bio- English availability English bioavailability From bio- + availability.

How to pronounce bioavailability

1. Open the pronunciation page — Open the Speakur entry for “bioavailability”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “bioavailability”.
4. Repeat and practice — Say “bioavailability” aloud, matching stress and vowels until it feels natural.