Pronunciation: (mō"gu-yōn'),[key] —n. 1. an extensive plateau or mesa in central Arizona; the southwestern margin of the Colorado Plateau.
2. a mountain range in W New Mexico.
—adj. Archaeol.of or pertaining to an Amerindian culture of southeastern Arizona and southwestern New Mexico 100b.c.–a.d.1000, characterized by pit houses also used for burials and a distinctive black-on-white pottery decorated with human and animal figures.