(chemistry) Any of the class of heterocyclic compounds consisting of a benzene ring fused to an azepine ring.

(organic chemistry) Either of two isomeric tetracyclic aromatic hydrocarbons formed by the fusion of a benzene ring with anthracene.

(organic chemistry) A nitrogenous cationic surface-acting agent of the quaternary ammonium group, used as a biocide, as a cationic surfactant and as a phase transfer agent in the chemical industry.

(pharmacology) An anticholinergic drug administered in the form of its mesylate C₂₁H₂₅NO·CH₄O₃S especially to treat the symptoms of Parkinson's disease (as tremors, spasms, or muscle weakness) or similar symptoms caused as side effects of other drugs (as phenothiazine derivatives).

(organic chemistry) Modified by the addition of, or by cyclization to form, a benzene ring

(organic chemistry) Modification by the addition of, or by cyclization to form, a benzene ring

(chemistry) A transparent crystalline substance, C₆H₅.CO. NH₂, obtained by the action of ammonia on benzoyl chloride and by several other reactions with benzoyl compounds.

(mythology, Shinto) (Also known as "Benten-sama") The Hindu goddess, Saraswati, of knowledge, art and beauty, music, language, wisdom, poetry and rivers.

(pharmacology) A thrombolytic drug.

plural of benzannulation