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English Words Starting With B

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benzene
nounLow
/bɛnˈziːn/A colorless, flammable, toxic, liquid hydrocarbon (C₆H₆) with a characteristic sweet smell, used as a solvent and as a starting material for synthesizing many other chemicals.
benzene hexachloride
nounC1/C2
/ˌbɛnziːn ˌhɛksəˈklɔːraɪd/A toxic organochlorine chemical compound with the formula C6H6Cl6, historically used as an insecticide.
benzene ring
nounC2
/ˈbɛnziːn ˌrɪŋ/A stable hexagonal ring of six carbon atoms, each bonded to a hydrogen atom, forming the basic structural unit of aromatic organic compounds.
benzene series
nounC2
/ˈbɛnziːn ˈsɪəriːz/A group of homologous aromatic hydrocarbons derived from benzene (C₆H₆) by replacing hydrogen atoms with alkyl groups, following the general formula CₙH₂ₙ₋₆ (where n ≥ 6).
benzeneazobenzene
nounC2
/ˌbɛnziːnˌeɪzəʊˈbɛnziːn/A specific chemical compound; an aromatic organic compound that is a derivative of azobenzene, where a benzene ring is substituted on the azobenzene structure.
benzenecarbaldehyde
nounRare / Very Specialized
/ˌbɛnziːnkɑːˈbældɪhaɪd/The systematic IUPAC name for the aromatic organic compound benzaldehyde.
benzenecarbonyl
nounC2
/ˌbɛnziːnˈkɑːbənaɪl/A functional group derived from benzoic acid, consisting of a benzene ring bonded to a carbonyl group (C=O).
benzenecarboxylate
nounVery low frequency
/ˌbɛnziːnkɑːˈbɒksɪleɪt/A salt or ester formed when benzoic acid loses a hydrogen ion from its carboxylic acid group (–COOH).
benzenecarboxylic acid
nounVery Rare / Technical
/ˌbɛnziːnˌkɑːbɒkˈsɪlɪk ˈæsɪd/The systematic IUPAC name for benzoic acid, a white crystalline organic acid consisting of a benzene ring with a single carboxylic acid group (COOH) attached.
benzenesulfonic acid
nounC2/Highly Technical
/ˌbɛnziːnsʌlˈfɒnɪk ˈæsɪd/An organic compound formed by the sulfonation of benzene, containing a sulfonic acid group attached to a benzene ring.
benzenoid
adjectivenounVery Rare / Technical
/ˈbɛnzɪnɔɪd/relating to, or having the structure of benzene (a ring of six carbon atoms with alternating double bonds).
benzethonium chloride
nounC2
/ˌbɛnzɪˈθəʊnɪəm ˈklɔːraɪd/A synthetic quaternary ammonium compound used primarily as a cationic surfactant and antiseptic agent, effective against bacteria and fungi.
benzidine
nounLow
/ˈbɛnzɪdiːn/A chemical compound historically used as a precursor for dyes and in medical testing.
benzimidazole
nounC2
/ˌbɛnzɪˈmɪdəzəʊl/A heterocyclic aromatic organic compound consisting of a benzene ring fused to an imidazole ring.
benzine
nounC2
/ˈbɛnziːn/A volatile, flammable liquid mixture of hydrocarbons obtained from petroleum, used chiefly as a solvent and in making other chemicals.
benzo
combining-formnounLow
/ˈbɛnzəʊ/An informal, clipped term for a benzodiazepine drug, a class of psychoactive drugs used primarily for treating anxiety, insomnia, and seizures.
benzoate
nounC2
/ˈbɛnzəʊeɪt/A salt or ester of benzoic acid.
benzoate of soda
nounVery Low
/ˌbɛnzəʊeɪt əv ˈsəʊdə/A chemical compound, sodium benzoate, used as a food preservative (E211).
benzocaine
nounLow
/ˈbɛnzə(ʊ)keɪn/A local anesthetic and pain reliever used as a topical medication.
benzodiazepine
nounLow
/ˌbɛnzəʊdʌɪˈeɪzəpiːn/A class of psychoactive drugs primarily used to treat anxiety, insomnia, seizures, and muscle spasms.

Showing 3361–3380 of 10030 words.