1 a the triangular front part of a building in Grecian style, surmounting esp. a portico of columns. b a similar part of a building in Roman or Renaissance style.
2 Geol. a broad flattish rock surface at the foot of a mountain slope.
Derivatives:
pedimental adj. pedimented adj.
Etymology: earlier pedament, periment, perh. corrupt. of PYRAMID
Useful english dictionary. 2012.