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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)

benzofuran
nounVery Low
/ˌbɛnzə(ʊ)ˈfjʊəræn/A heterocyclic organic compound composed of fused benzene and furan rings.
benzoglyoxaline
nounVery Low (Obsolete Technical)
/ˌbɛnzəʊɡlaɪˈɒksəliːn/An obsolete chemical name for a bicyclic heterocyclic compound formed by fusing a benzene ring to a glyoxaline (imidazole) ring.
benzoic acid
nounVery Low
/bɛnˌzəʊ.ɪk ˈæs.ɪd/A white crystalline organic acid (C₇H₆O₂) derived from benzoin or other sources, used as a food preservative and in manufacturing.
benzoin
nounC2
/ˈbɛnzəʊɪn/A fragrant resin obtained from certain trees, used in perfumes, incense, and medicine.
benzol
nounVery Low
/ˈbɛnzɒl/An older or commercial name for benzene, a clear, volatile, highly flammable liquid hydrocarbon (C6H6) derived from coal tar.
benzonatate
nounVery Low
/ˌbɛnzəʊˈneɪteɪt/A prescription medication used as a cough suppressant by numbing the stretch receptors in the lungs and respiratory passages.
benzonitrile
nounVery Low (Specialist)
/ˌbɛnzəʊˈnaɪtraɪl/A colorless, toxic organic compound (C₆H₅CN) with the structure of benzene where a hydrogen atom is replaced by a nitrile group (-CN).
benzophenone
nounVery low (C2/Technical)
/ˌbɛnzə(ʊ)ˈfiːnəʊn/A crystalline organic compound used primarily as a photoinitiator and in the manufacture of fragrances, pharmaceuticals, and sunscreens.
benzopyrene
nounLow
/ˌbɛnzəʊˈpʌɪriːn/A polycyclic aromatic hydrocarbon (PAH), specifically a type of chemical found in coal tar and tobacco smoke, known to be a potent carcinogen.
benzoquinone
nounVery Low (C2+ technical term)
/ˌbɛnzəʊˈkwɪnəʊn/A yellow crystalline compound with the formula C₆H₄O₂, existing in two isomeric forms (ortho- and para-), used as an oxidizing agent and in the synthesis of dyes and pharmaceuticals.
benzosulfimide
nounC2+
/ˌbɛnzəʊˈsʌlfɪmaɪd/The chemical compound saccharin; an artificial sweetener.
benzotrichloride
nounVery Low
/ˌbɛnzəʊtraɪˈklɔːraɪd/A specific chemical compound (C7H5Cl3) formed by the substitution of three hydrogen atoms in toluene with chlorine atoms.
benzotrifluoride
nounVery Rare
/ˌbɛnzəʊtraɪˈflʊəraɪd/A chemical compound consisting of a benzene ring with three fluorine atoms attached.
benzoyl
adjectivenounVery Low
/ˈbɛnzəʊɪl/The univalent radical C6H5CO– derived from benzoic acid.
benzoyl group
nounC2
/ˈbɛnzəʊɪl ɡruːp/A functional group in organic chemistry with the formula C₆H₅C(O)-, derived from benzoic acid by removal of the hydroxyl group.
benzoyl peroxide
nounB2
/ˌbenzəʊɪl pəˈrɒksaɪd/A chemical compound (C14H10O4) widely used as an antiseptic agent in medications for treating acne and as a bleaching agent in industry.
benzoylate
verb-transitiveC2 / Extremely Rare
/bɛnˈzəʊɪleɪt/To introduce a benzoyl group (C₆H₅CO-) into a molecule via a chemical reaction.
benztropine mesylate
nounVery Rare (specialist medical/technical term)
/ˌbenzˈtrəʊ.piːn ˈmɛs.ɪ.leɪt/A prescription medication (combination of an anticholinergic compound and its salt form) used primarily to treat symptoms of Parkinson's disease and certain side effects of antipsychotic medications.
benzyl
adjectivenounC2
/ˈbɛnzɪl/A univalent radical derived from toluene by removal of a hydrogen atom from the methyl group (C₆H₅CH₂−).
benzyl acetate
nounC2 (Very Rare - Technical)
/ˌbenzɪl ˈæsɪteɪt/A clear, colorless liquid ester with a pleasant, sweet, floral-fruity aroma, commonly used as a flavor and fragrance ingredient.

Showing 3381–3400 of 10030 words.