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English Words Starting With B

10,030 entries — pick a word to see its definition, pronunciation, and usage.

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

bioresearch
nounC1/C2
/ˈbaɪəʊrɪˌsɜːtʃ/Research or investigation that involves living organisms or biological systems.
bioreserve
nounLow
/ˌbaɪ.əʊ.rɪˈzɜːv/A protected area designated for the conservation of biological diversity and natural ecosystems.
biorhythm
nounC1
/ˈbaɪ.əʊ.ˌrɪð.əm/A recurring cycle of physiological or behavioural changes in living organisms, believed to regulate various physical, emotional, and intellectual states.
biorhythmics
nounExtremely low
/ˌbaɪəʊˈrɪðmɪks/The study or analysis of biological rhythms and cyclic patterns in living organisms.
bios
nounC1
/ˈbaɪ.ɒs/The basic input/output system of a computer, a firmware interface that initializes hardware during the booting process.
biosafety
nounC1
/ˌbaɪəʊˈseɪf.ti/The principles and practices designed to prevent the accidental exposure to or release of biological agents, especially pathogens.
bioscience
nounMedium
/ˈbaɪəʊˌsaɪəns/Any of the life sciences, such as biology, botany, or zoology, that study living organisms and their processes.
bioscope
nounVery Low / Archaic / Historical
/ˈbaɪəskəʊp/An early motion-picture projector or cinema.
bioscopy
nounC2
/baɪˈɒs.kə.pi/The examination or inspection of a body to determine if there are signs of life, particularly a medical procedure to confirm death.
biosensor
nounC2
/ˈbaɪəʊˌsɛnsə/A device that detects or measures a biological substance (e.g., a chemical, organism, or biomolecule) and converts it into a readable electronic signal.
biosimilar
adjectivenounC1/C2
/ˌbaɪ.əʊˈsɪm.jə.lər/A biological product highly similar to an already approved reference biologic, with no clinically meaningful differences in safety and efficacy.
biosociology
nounC2
/ˌbaɪəʊˌsəʊsiˈɒlədʒi/The scientific study of the biological bases and influences on social behavior.
biosolids
plural-nounC1
/ˈbaɪəʊˌsɒlɪdz/A nutrient-rich organic material resulting from the treatment of sewage sludge, primarily used as a soil conditioner or fertilizer.
biospeleology
nounVery Rare / Scientific
/ˌbaɪəʊˌspiːliˈɒlədʒi/The scientific study of organisms that live in caves.
biosphere
nounC1
/ˈbaɪə(ʊ)ˌsfɪə/The regions of Earth's surface, atmosphere, and hydrosphere occupied by living organisms.
biostatics
nounC2
/ˌbaɪə(ʊ)ˈstætɪks/A dated and now rarely used term for the science dealing with the structure and function of living systems, essentially synonymous with 'physiology'.
biostatistics
nounLow
/ˌbaɪəʊstəˈtɪstɪks/The application of statistics to the study of living organisms and biological data.
biostratigraphy
nounC2
/ˌbaɪ.əʊ.strəˈtɪɡ.rə.fi/The branch of stratigraphy that uses fossil organisms to date and correlate rock layers.
biostrome
nounVery Low
/ˈbaɪə(ʊ)strəʊm/A layered, sheet-like mass of organic remains, such as shells or coral, in a rock stratum.
biosurgery
nounC2
/ˌbaɪəʊˈsɜːdʒəri/The use of living organisms, typically maggots (fly larvae) or leeches, in medical treatment to clean wounds and promote healing.

Showing 4561–4580 of 10030 words.