pediment

A wide, low-pitched gable surmounting the façade of a building in the Grecian style.

A triangular element, similar to or derivative of a Grecian pediment, used widely in architecture and decoration.

A broad, gently sloping rock surface at the base of a steeper slope, often covered with alluvium, formed primarily by erosion.

In architecture, a low triangular part resembling a gable, crowning the fronts of buildings in the Greek styles, especially over porticos.

Hence In decorative art, any member of similar outline, forming a triangular or segmental ornament rising above a horizontal band, as in ironwork; such a member above the opening of a screen or the like: it may be entirely open and consist of light scrollwork only.

Originally, in classical architecture, the triangular space forming the gable of a simple roof; hence, a similar form used as a decoration over porticoes, doors, windows, etc.; also, a rounded or broken frontal having a similar position and use. See temple.

A classical architectural element consisting of a triangular section or gable found above the horizontal superstructure (entablature) which lies immediately upon the columns; fronton

a triangular gable between a horizontal entablature and a sloping roof