bioavailability

noun

bio·​avail·​abil·​i·​ty ˌbī-(ˌ)ō-ə-ˌvā-lə-ˈbi-lə-tē 

: the degree and rate at which a substance (such as a drug) is absorbed into a living system or is made available at the site of physiological activity

bioavailable

ˌbī-(ˌ)ō-ə-ˈvā-lə-bəl 

adjective

Examples of bioavailability in a Sentence

Recent Examples on the Web

Improve overall iron bioavailability. —Anna Giorgi, Verywell Health, 12 June 2026

Clayton points repeatedly to bioavailability: not merely what enters the body, but what the body can actually absorb, use and retain. —Kate Hardcastle, Forbes.com, 27 May 2026

The bioavailability of whey matters more than most practitioners realize. —William Jones, Ascend Agency, 13 Apr. 2026

That testing not only helps ensure bioavailability and efficacy, but also tests for purity, potency, and contaminants. —Brianna Peters, Vogue, 6 Mar. 2026

Word History

First Known Use

1961, in the meaning defined above

Rhymes for bioavailability

• communicability
• comprehensibility
• deliverability
• differentiability
• impenetrability
• impermeability
• impracticability
• inaccessibility
• inadmissibility
• inapplicability
• incompatibility
• indestructibility

Medical Definition

bioavailability

noun

bio·​avail·​abil·​i·​ty -ə-ˌvā-lə-ˈbil-ət-ē 

plural bioavailabilities

: the degree and rate at which a substance (as a drug) is absorbed into a living system or is made available at the site of physiological activity

bioavailable

-ˈvā-lə-bəl 

adjective