ˈpedəmənt noun
( -s )
Etymology: alteration of obsolete English periment, probably alteration of English pyramid
1.
a. : the triangular space forming the gable of a 2-pitched roof in classic architecture
b. : a similar form used as a decoration (as over porticoes, doors, windows)
c. : a rounded or broken frontal having a similar position and use
2. : a part in decorative art resembling or suggestive of an architectural pediment in form and position
3.
[perhaps from Italian pedamento flooring, from Latin pedamentum vine prop, from pedare to supply with feet (from ped-, pes foot) + -mentum -ment — more at foot ]
: base 1a, pavement
4. : a broad gently sloping bedrock surface with low relief that is situated at the foot of a much steeper mountain slope in an arid or semiarid region, is usually covered with a thin veneer of alluvial gravel and sand, and is an erosional surface in contrast to a depositional piedmont plain