Medical Dictionary


noun 4–ami·no·bi·phe·nyl \ˈfȯr-ə-ˌmē-nō-(ˌ)bī-ˈfe-nəl, -ˈfē-\
variants: also


\ˈfȯr-ə-ˌmē-nō-(ˌ)dī-ˈfe-nəl, -ˈfē-\ play

Medical Definition of 4–aminobiphenyl

  1. :  a carcinogenic chemical compound C12H11N with a floral odor that is present in tobacco smoke, occurs as an impurity in diphenylamine, was formerly used as a stabilizer of rubber and in the manufacture of azo dyes, and is now chiefly limited to use in laboratory research Researchers at the University of Louisville studied 410 pregnant women, measuring levels of three tobacco carcinogens in the mothers and their newborns—benzo(a)pyrene, which causes lung and skin cancer; 4-aminobiphenyl, which causes bladder cancer; and acrylonitrile, which causes liver cancer.—Amanda Husted, Atlanta Journal-Constitution, 23 Apr. 1996

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feeling or affected by lethargy

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