[f. ATOM; cf. F. hectare, and see ARE sb.3] An area, or geometrical figure, supposed to be formed by a combination of ultimate atoms: see ATOMECHANICS.
1867. Mining Jrnl., Dec. According as the figures thus forned, or atomares, are composed of equilateral triangles, or squares, the elements are divided into two orders, trigonoids (or metalloids) and tetragonoids (or metals).
