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

This may be due to its high bioavailability (a measure of how much of a substance is absorbed and utilized in the body).2 Many other types of creatine are available. —Elizabeth Barnes, Verywell Health, 2 May 2025

This reduction in size enhances the bioavailability and absorption rate of THC. —Matt Rozo, Mercury News, 17 Apr. 2025

Alcohol, soft drinks, and coffee can also decrease magnesium bioavailability. —Merve Ceylan, Health, 11 Apr. 2025

The company has completed a Phase 1/2 study demonstrating bioavailability and dose proportionality of CTx-1301 compared to Focalin XR. —Quartz Intelligence Newsroom, Quartz, 27 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