Search Result for "op art":
Wordnet 3.0

NOUN (1)

1. a style of abstractionism popular in the 1960s; produces dramatic visual effects with colors and contrasts that are difficult for the eye to resolve; 



WordNet (r) 3.0 (2006):

op art
    n 1: a style of abstractionism popular in the 1960s; produces
         dramatic visual effects with colors and contrasts that are
         difficult for the eye to resolve