n. An experimental philosopher; a student of things by direct observation.n. One who has an instructed appreciation of artistic excellence; a person skilled in or having a critical taste for any of the elegant arts, as painting, sculpture, etc.; one having special knowledge or skill in antiquities, curiosities, and the like.n. One who is a master of the mechanical part of a fine art, especially music, and who makes display of his dexterity. See virtuosity, 2.