CHAULIAC, GUY DE (GL'IDO DE CAULIACO) (C. 1300 1368), French surgeon, was born at Chauliac (Auvergne). He studied at Toulouse, Montpellier and Paris, and then went to Bologna to study anatomy under Nicolo Bertuccio. Chauliac was one of the most learned men of his time, and his book, Chirurgia magna (1363), passed through many translations and was for a long time the standard work on the subject. It was first printed in French at Lyons in 1478 (modern ed. by E. Nicaise, Paris 18go). Guy died on July 25, 1368, at Avignon, where he was physician to the pope. He operated for hernia and cataract, which had hitherto been treated mainly by charlatans, and has left a description of the narcotic inhalation given to patients.
See the introduction by E. Nicaise to his edition of Guy's La Grande Chirurgic (1890), with bibliography.