bio·​avail·​abil·​i·​ty ˌbī-(ˌ)ō-ə-ˌvā-lə-ˈbi-lə-tē How to pronounce bioavailability (audio)
: 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 adjective

Examples of bioavailability in a Sentence

Recent Examples on the Web However, with sublingual use of CBD oil, the bioavailability is significantly higher. Amber Smith, Discover Magazine, 23 Oct. 2023 For example, vaping CBD may have higher bioavailability compared to oral ingestion. Onset and duration: Different formats have varying onset times and durations of effects. Amber Smith, Discover Magazine, 13 Oct. 2023 The new research found that foods made with PPO-containing fruits and vegetables (like bananas) can have an impact on the bioavailability of flavanols. Rebecca Jaspan, Mph, Rd, Health, 29 Sep. 2023 Understanding bioavailability and its impact on dosing effectiveness: Bioavailability refers to the amount of a substance that enters circulation and reaches target tissues after administration. Amber Smith, Discover Magazine, 2 Sep. 2023 Here's a breakdown of each consumption method's bioavailability and typical onset times: Vaping: High bioavailability; rapid onset within minutes. Amber Smith, Discover Magazine, 16 Aug. 2023 The liquid form of B12 in Raw Science’s offering ensures higher bioavailability, meaning your body can use it effectively. The Salt Lake Tribune, 16 Aug. 2023 These carrier oils help improve the bioavailability and absorption of delta-8 THC when consumed orally. Amber Smith, Discover Magazine, 9 Aug. 2023 Carbonyl iron, a form of iron supplement, is often recommended due to its high bioavailability and minimal side effects. Amber Smith, Discover Magazine, 5 Aug. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'bioavailability.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of bioavailability was in 1961

Dictionary Entries Near bioavailability

Cite this Entry

“Bioavailability.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2023.

Medical Definition


bio·​avail·​abil·​i·​ty -ə-ˌvā-lə-ˈbil-ət-ē How to pronounce bioavailability (audio)
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 adjective
Last Updated: - Updated example sentences
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