Definition of pediment in English:



  • 1The triangular upper part of the front of a classical building, typically surmounting a portico.

    • ‘The city was gloriously clean, its classical columns and pediments and its baroque scrolls and volutes now clearly delineated by the shadows cast by an oblique sun on their pale surfaces.’
    • ‘The entablature and pediment of the portico are supported by two pairs of massive Ionic columns.’
    • ‘A massive pediment with entablature is supported by four Roman Doric columns on granite bases.’
    • ‘Modelled on St. Peter's basilica in Rome, its façade is defined by Corinthian pilasters and a pediment, with a great central dome towering over them.’
    • ‘They followed the classic model of Greek temples, with their rectangular rows of columns, topped by beams and relieved by a triangular pediment.’
    1. 1.1A triangular feature surmounting a door, window, or other part of a non-classical building.
      • ‘Next time you see a Venetian window, a triangular pediment, a coved gallery ceiling, or a Georgian terrace with lined stucco, remember who started it all.’
      • ‘With an original oak floor, this area also features a carved oak ceiling rose, pediments, cornices and architraves.’
      • ‘Like the great house, its windows were surmounted by alternating triangular and rounded pediments.’
      • ‘All the houses will have a traditional look with curved timber framed windows, decorative roof detail and over-door pediments.’
      • ‘Trim the exterior of the door with finish carpentry such as columns and a crosshead pediment to extend the width of the door.’
  • 2Geology
    A broad, gently sloping expanse of rock debris extending outwards from the foot of a mountain slope, especially in a desert.

    ‘At the toe of the slope a rock pediment can be found.’


Late 16th century (as periment): perhaps an alteration of pyramid.