Thesaurus: pyramidal

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Definitions

1. a. Of or pertaining to a pyramid; in the form of a a pyramid; pyramidical; as, pyramidal cleavage.
2. a. Same as Tetragonal.
3. n. One of the carpal bones. See Cuneiform, n., 2 (b).
4. adj. resembling a pyramid
5. 1. Of or pertaining to a pyramid; in the form of a a pyramid; pyramidical; as, pyramidal cleavage. The mystic obelisks stand up Triangular, pyramidal. Mrs. Browning. 2. (Crystallog.) Same as Tetragonal. Pyramidal numbers (Math.), certain series of figurate numbers expressing the number of balls or points that may be arranged in the form of pyramids. Thus 1, 4, 10, 20, 35, etc., are trangular pyramidal numbers; and 1, 5, 14, 30, 55, etc., are square pyramidal numbers. One of the carpal bones. See Cuneiform, n., 2 (b).
6. Same as Tetragonal. Pyramidal numbers (Math.), certain seriesof figurate numbers expressing the number of balls or points that maybe arranged in the form of pyramids. Thus 1, 4, 10, 20, 35, etc., aretrangular pyramidal numbers; and 1, 5, 14, 30, 55, etc., are squarepyramidal numbers.
7. j:100 s. resembling a pyramid