PYRAMIDAL

pyramidal, pyramidic, pyramidical

(adjective) resembling a pyramid

Source: WordNet® 3.1


Etymology

Adjective

pyramidal (not comparable)

(geometry) Pyramid-shaped.

(crystallography) Tetragonal.

Noun

pyramidal (plural pyramidals)

(anatomy) One of the carpal bones

Source: Wiktionary


Py*ram`i*dal, a. Etym: [Cf. F. pyramidal.]

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.)

Definition: 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.

Py*ram"i*dal, n. (Anat.)

Definition: One of the carpal bones. See Cuneiform, n., 2 (b).

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

5 December 2024

POLE

(noun) one of two divergent or mutually exclusive opinions; “they are at opposite poles”; “they are poles apart”


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Coffee Trivia

An article published in Harvard Men’s Health Watch in 2012 shows heavy coffee drinkers live longer. The researchers examined data from 400,000 people and found out that men who drank six or more coffee cups per day had a 10% lower death rate.

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