pyramidal /pɪˈɹæm.ɪ.dl̩/adjective 2noun 1forms 1 adjective2 •Pyramid-shaped.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 •Tetragonal. noun1 •One of the carpal bones. formspyramidals
