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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)

betacam
nounLow
/ˈbiːtəkæm/A professional analog videocassette format developed by Sony in the 1980s, used primarily for broadcast television production.
betacarotene
nounC2
/ˌbiːtə ˈkærətiːn/An orange-red pigment, a type of carotenoid, that is converted into vitamin A in the body and acts as an antioxidant.
betacyanin
nounC2
/ˌbiːtəˈsaɪənɪn/A red or violet pigment found in plants, particularly in the order Caryophyllales, such as beets and bougainvillea.
betagalactosidase
nounVery Rare
/ˌbeɪtəɡəˌlæktəˈsaɪdeɪz/An enzyme that catalyzes the hydrolysis of beta-galactosides into monosaccharides.
betaine
nounLow-frequency (Specialist)
/ˈbiːtəiːn/A neutral chemical compound found in plants and animals, especially as a derivative of the amino acid glycine. It acts as an osmolyte and methyl donor in biochemical processes.
betake
verbverb-transitiveRare/Archaic
/bɪˈteɪk/To go or move to a place; to have recourse to a course of action or state of being.
betamethasone
nounVery Low
/ˌbiːtəˈmɛθəzəʊn/A potent synthetic glucocorticoid corticosteroid medication used to reduce inflammation and treat various immune system and skin conditions.
betamethyl acrolein
nounVery Rare / Specialist
/ˌbeɪtə ˌmɛθaɪl ˌækrəʊˈliːɪn/The organic chemical compound also known as 3-methyl-2-propenal, an aldehyde with a double bond.
betancourt
nounVery Low (Proper Noun)
/ˈbet.ən.kɔːt/A proper noun referring to a surname of Spanish origin.
betatron
nounVery Low
/ˈbiːtətrɒn/A type of particle accelerator, specifically a circular induction accelerator, that accelerates electrons to high energies using a changing magnetic field.
betazole
nounVery Low (Technical/Scientific)
/ˈbiːtəzəʊl/A synthetic chemical compound that acts as a histamine H₂-receptor agonist, used primarily in medical diagnostics to stimulate gastric acid secretion for testing purposes.
bete noire
nounC1-C2
/ˌbɛt ˈnwɑː/A person or thing that one particularly dislikes or fears; a detested, dreaded, or avoided nuisance.
betel
nounC2
/ˈbiːtl̩/A leaf from the betel pepper plant (Piper betle).
betel nut
nounLow
/ˈbiːtəl nʌt/The seed of the areca palm, often chewed as a stimulant, especially when wrapped in a betel leaf with slaked lime.
betel palm
nounLow
/ˈbiːt(ə)l pɑːm/A tropical palm tree (Areca catechu) whose seeds (areca nuts) are chewed with betel leaf and lime as a mild stimulant.
betelgeuse
nounVery Low
/ˈbiːt(ə)ldʒuːz/A prominent red supergiant star, the second brightest star in the constellation of Orion and one of the brightest stars in the night sky.
beth
nounVery Low
/bɛθ/The second letter of the Hebrew alphabet (ב).
beth din
nounLow
/ˌbɛt ˈdiːn/A Jewish rabbinical court of law that adjudicates matters of religious law, personal status, and community disputes according to Halakha (Jewish law).
beth hillel
nounVery Low (C2+)
/bɛθ ˈhɪlɛl/A Jewish academy or school of thought (bet midrash) associated with the sage Hillel the Elder, active in the late Second Temple period, known for its lenient and humane interpretations of Jewish law (Halakha).
beth midrash
nounLow (Specialist)
/ˌbɛt mɪˈdrɑːʃ/A Jewish house of study, specifically for Talmudic and rabbinic texts.

Showing 3701–3720 of 10030 words.