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

Each creatine form may provide different benefits and downsides regarding bioavailability (ease of absorption), effectiveness, safety, and cost.3 1. —Merve Ceylan, Health, 23 Oct. 2024

But once the researchers added their tag to the molecule, its bioavailability jumped from almost nothing to 100%. —Michael Irving, New Atlas, 8 Oct. 2024

The problem with many oral drugs is bioavailability – how much of the dose is available for the body to absorb. —Michael Irving, New Atlas, 8 Oct. 2024

These differences may influence bioavailability, but in most cases, the synthetic and natural forms are absorbed at similar rates in the body. —Allison Knott, Ms, Rdn, Cssd, Health, 26 Sep. 2024

Word History

First Known Use

1961, in the meaning defined above

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