pyramidal

1. not comparablegeometryPyramid-shaped.

   Among its attractive features were decorative, tile-hung Italianate towers with pyramidal roofs.

   2023 March 22, Dr Joseph Brennan, “Grand buildings on the list... and lost: Greenock Princes Pier”, in RAIL, number 979, page 52

   2 more examples

   At one point was an isolated pyramidal rock, crowned by a great tree, which appeared to be separated by a cleft from the main crag.

   1912, Arthur Conan Doyle, “‘It’s Just the very Biggest Thing in the World’”, in The Lost World […], London; New York, N.Y.: Hodder and Stoughton, →OCLC, page 49

   Below is the deep abyss of the Lauterbrunnen valley, and at its head a stately semi-circle of mountains, with the pyramidal Lauterbrunnen Breithorn as the centre-piece.

   1960 December, Voyageur, “The Mountain Railways of the Bernese Oberland”, in Trains Illustrated, page 752

   1. not comparablechemistryTetragonal.

plural pyramidals

1. anatomyOne of the carpal bones.