|mərˌkap|t(y)u̇rik- noun
Etymology: International Scientific Vocabulary mercapturic, from mercapt- + -uric
: an acid RSCH 2 CH(NHCOCH 3 )COOH formed from cysteine and an aromatic compound (as bromobenzene) in the body and usually excreted in the urine (as in the form of a glucuronide); an S -aryl derivative of N -acetyl-cysteine