n. [ L. pyramis, -idis, fr. Gr. &unr_;, &unr_;, of Egyptian origin: cf. F. pyramide. ] [ 1913 Webster ]
Altitude of a pyramid (Geom.),
Axis of a pyramid (Geom.),
Earth pyramid. (Geol.)
Right pyramid (Geom.)
v. i. (Speculation) To enlarge one's holding or interest in a series of operations on a continued rise or decline by using the profits to buy or sell additional amounts on a margin, as where one buys on a 10% margin 100 shares of stock quoted at 100, holds it till it rises to 105, and then uses the paper profit to buy 50 shares more, etc. The series of operations constitutes a pyramid. A similar process of reinvesting gains or winnings (as of a gamble), but not involving operation on margin, is called a
v. t. (Speculation) To use, or to deal in, in a pyramiding transaction. See Pyramid, v. i. [ Webster 1913 Suppl. ]
n. (Anat.) One of the carpal bones. See Cuneiform, n., 2
a. [ Cf. F. pyramidal. ] [ 1913 Webster ]
The mystic obelisks stand up
Triangular, pyramidal. Mrs. Browning. [ 1913 Webster ]
Pyramidal numbers (Math.),
adv. Like a pyramid. [ 1913 Webster ]
‖n.;
n. [ Gr. &unr_;, &unr_;, pyramid + -id: cf. F. pyramidoïde. ] A solid resembling a pyramid; -- called also