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English Words Starting With B

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

bio break
nounLow-to-medium
/ˈbaɪ.əʊ ˌbreɪk/A short, informal pause in a meeting or event, specifically to use the toilet.
bio queen
nounLow
/ˈbaɪəʊ kwiːn/A cisgender woman who performs as a drag queen.
bio-
adjectivecombining-formnounHigh
/ˈbaɪəʊ/A prefix derived from Greek, meaning 'life' or 'living organisms'.
bio-bio
nounVery Low
/ˈbaɪ.əʊ ˈbaɪ.əʊ/A reduplicative or playful term for biology, biological studies, or something related to life sciences. Not a standard dictionary word; often used colloquially or in specific contexts like branding or casual reference.
bio-organism
nounLow
/ˌbaɪ.əʊˈɔː.ɡən.ɪ.zəm/A living entity, typically microscopic, that is studied in the context of biological science or biotechnology.
bio-security
nounC1/C2
/ˌbaɪəʊsɪˈkjʊərɪti/Procedures intended to protect humans or animals against disease or harmful biological agents.
bio-terrorism
nounC2
/ˌbaɪ.əʊˈter.ə.rɪ.zəm/The use of biological agents (such as viruses, bacteria, or toxins) to deliberately cause harm, terror, or death among civilian populations, typically as a political or ideological weapon.
bio-warfare
nounLow
/ˌbaɪəʊ ˈwɔː.feər/The use of biological agents (such as bacteria, viruses, toxins) as weapons in armed conflict or terrorism.
bioaccumulate
verbC1
/ˌbaɪ.əʊ.əˈkjuː.mjə.leɪt/(Of a substance, especially a toxin) to gradually increase in concentration within the tissues of a living organism over time.
bioaccumulation
nounLow
/ˌbaɪ.əʊ.əˌkjuː.mjʊˈleɪ.ʃən/The gradual buildup of substances, typically toxins, in the tissues of living organisms, increasing in concentration over time as they are absorbed from the environment.
bioacoustics
nounLow (C2/Proficient)
/ˌbaɪ.əʊ.əˈkuː.stɪks/The branch of science that studies sound production, transmission, and reception in animals.
bioactivity
nounLow/C2
/ˌbaɪ.əʊ.ækˈtɪv.ə.ti/The effect a substance (like a drug or chemical) has on a living organism or biological system, especially its ability to produce a physiological response.
bioaeration
nounVery Low (C2+)
/ˌbaɪ.əʊ.eəˈreɪ.ʃən/The process of supplying or treating with air or oxygen using biological agents or processes, typically to accelerate the decomposition of organic matter in wastewater or soil.
bioaeronautics
nounVery Low
/ˌbaɪ.əʊ.eə.rəˈnɔː.tɪks/The study of the effects of flight on living organisms.
bioarchaeology
nounLow
/ˌbaɪ.əʊˌɑː.kiˈɒl.ə.dʒi/The scientific study of human or animal remains from archaeological sites, focusing on biological data like disease, diet, or genetics.
bioassay
nounverbverb-transitiveC2
/ˌbaɪəʊˈæseɪ/A measurement of the effect of a substance on living cells, tissues, or organisms.
bioastronautics
nounVery Low
/ˌbaɪəʊˌæstrəˈnɔːtɪks/The study of the effects of space travel on living organisms, particularly humans.
bioautography
nounVery Rare
/ˌbaɪəʊɔːˈtɒɡrəfi/A chromatographic technique used to detect compounds, especially antibiotics, by their ability to inhibit the growth of microorganisms on a plate.
bioavailability
nounC1
/ˌbaɪəʊəˌveɪləˈbɪləti/The proportion of a drug or substance that enters the bloodstream when introduced into the body and so is able to have an active effect.
biobank
nounLow
/ˈbaɪəʊˌbæŋk/A large, organised collection of biological samples and data for research purposes.

Showing 4401–4420 of 10030 words.