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

The calcium your body gets from a food depends on two factors: the total calcium the food contains and the bioavailability of that calcium, or how well the body absorbs and uses the mineral. —Jessica Dulong, CNN Money, 20 June 2025

Typically, after a Phase 1 bioavailability and bioequivalence (BA/BE) study, a large Phase 3 trial is necessary. —Avik Pal, Forbes.com, 6 May 2025

Curcumin is known for having low bioavailability, meaning the body cannot easily absorb it. —Sarah Bence, Verywell Health, 21 May 2025

The amino acids in eggs have a bioavailability that offers more protein bang for your buck (so to speak). —New Atlas, 17 Mar. 2025

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