Chiaroscuro: Sounds like something you might order in a fine Italian restaurant, no? "I'll have the Pasta Chiaroscuro, please."
Italian food aside--Damn I love pasta! Too much, in fact--the word, chiaroscuro is an Italian word. Literally, it means light and dark.
In art, chiaroscuro techniques originated way back when, during the Renaissance. Artists began using light and shadow to convey a sense of three-dimensions in otherwise two-dimensional mediums like paintings, drawings, and printmaking.