- 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.
- a member of the ancient people who belonged to the Olmec civilization.
- a member of an ancient Central American Indian people who inhabited the southern Gulf Coast of Mexico and flourished between about 1200 and 400 bc
- of or relating to these people or their civilization or culture
