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a. A wide, low-pitched gable surmounting the façade of a building in the Grecian style.
b. A triangular element, similar to or derivative of a Grecian pediment, used widely in architecture and decoration.
2. Geology A broad, gently sloping rock surface at the base of a steeper slope, often covered with alluvium, formed primarily by erosion.
[Alteration (influenced by Latin pēs, ped-, foot) of earlier perement, probably alteration of pyramid.]
ped′i·men′tal (-mĕn′tl) adj.
1. (Architecture) a low-pitched gable, esp one that is triangular, as used in classical architecture
2. (Physical Geography) a gently sloping rock surface, formed through denudation under arid conditions
[C16: from obsolete periment, perhaps workman's corruption of pyramid]
ped•i•ment(ˈpɛd ə mənt)
1. (in classical architecture) a low triangular gable outlined by a horizontal cornice below and sloping cornices above, surmounting a colonnade, an end wall, or a major division of a facade.
2. a feature resembling this, used to crown an opening, monument, etc., or as decoration.
3. a gently sloping rock surface at the foot of a steep slope, usu. thinly covered with alluvium.
[1655–65; earlier pedament, pedement, alter., by association with Latin pēs (s. ped-) foot, of earlier peremint, perhaps alter. of pyramid; (definition 3) by construal as pedi- + -ment]
ped`i•men′tal (-ˈmɛn tl) adj.