Louis-Bernard Guyton de Morveau introduced the phrase "radical" in 1785 and the phrase was employed by Antoine Lavoisier in 1789 in his Traité Élémentaire de Chimie.
Louis-Bernard Guyton de Morveau introducía o termo "radical" en 1785 e despois foi empregado por Antoine Lavoisier en 1789 no seu Traité Élémentaire de Chimie.