adjective, noun, plural -mecs, (especially collectively
) -mec. Archaeology| 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. |
| 2. | a member of the ancient people who belonged to the Olmec civilization. |