/ol"mek, ohl"-/ , adj., n., pl. Olmecs , ( esp. collectively ) Olmec . Archaeol.
adj.
1. of or designating a Mesoamerican civilization, c1000-400 B.C., along the southern Gulf coast of Mexico, characterized by extensive agriculture, a dating system, long-distance trade networks, pyramids and ceremonial centers, and very fine jade work.
n.
2. a member of the ancient people who belonged to the Olmec civilization.