a. [ Pref. bi- + pyramidal. ] Consisting of two pyramids placed base to base; having a pyramid at each of the extremities of a prism, as in quartz crystals. [ 1913 Webster ]
a. [ Cf. F. pyramidal. ] [ 1913 Webster ]
The mystic obelisks stand up
Triangular, pyramidal. Mrs. Browning. [ 1913 Webster ]
Pyramidal numbers (Math.),
n. (Anat.) One of the carpal bones. See Cuneiform, n., 2
adv. Like a pyramid. [ 1913 Webster ]
a. [ Cf. F. pyramidal. ] [ 1913 Webster ]
The mystic obelisks stand up
Triangular, pyramidal. Mrs. Browning. [ 1913 Webster ]
Pyramidal numbers (Math.),
n. (Anat.) One of the carpal bones. See Cuneiform, n., 2
adv. Like a pyramid. [ 1913 Webster ]