1. an art movement that began in the U.S. in the 1950s and reached its peak of activity in the 1960s, chose as its subject matter the anonymous, everyday, standardized, and banal iconography in American life, as comic strips, billboards, commercial products, and celebrity images, and dealt with them typically in such forms as outsize commercially smooth paintings, mechanically reproduced silkscreens, large-scale facsimiles, and soft sculptures.