A stone block with a shallow concave area, combined with a mano for grinding corn or other grains.
A flat rock with a slightly concave area, used with another rock (a mano) for milling maize or any other grains.
A-flat or notably hollowed rock upon which grain or any other food is floor, in the form of an inferior stone or pestle.
A primitive hand-mill of stone, frequently on three, previously in addition on four, feet of the same block. In ancient times the Mexican metate was often elaborately created, whereas the Peruvian batan is a rude slab. The metate is within common used in the North American Southwest.