Can you explain what the following terms mean: chiaroscuro, the gaze, iconography, the canon, ekphrasis, polyptych, hegemony, contrapposto, readymade, paradigm? (You should be aware that some of these terms are not narrowly art-historical but are also used in scholarship in the humanities more generally).
Chiaroscuro: Italian technical term meaning light/shade, used especially when they are strongly contrasting. Joseph Wright of Derby in his paintings of scientific experiments makes full use of the dramatic effects of light and dark.