Definition of bioavailable in English:

bioavailable

adjective

Physiology
  • (of a drug or other substance) entering the circulation when introduced into the body and so able to have an active effect.

    ‘bioavailable oral antibiotics’
    ‘highly bioavailable forms of nutrients’

Pronunciation

bioavailable

/ˌbʌɪəʊəˈveɪləb(ə)l/