Definition of pyramid

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Pyramid (n.) A solid figure contained by a plane rectilineal figure as base and several triangles which have a common vertex and whose bases are sides of the base.

Lern More About Pyramid

Trou-de-loup :: Trou-de-loup (n.) A pit in the form of an inverted cone or pyramid, constructed as an obstacle to the approach of an enemy, and having a pointed stake in the middle. The pits are called also trapholes..
Teocalli :: Teocalli (n.) Literally, God's house; a temple, usually of pyramidal form, such as were built by the aborigines of Mexico, Yucatan, etc..
Taper :: Taper (a.) Regularly narrowed toward the point; becoming small toward one end; conical; pyramidical; as, taper fingers..
Zirconoid :: Zirconoid (n.) A double eight-sided pyramid, a form common with tetragonal crystals; -- so called because this form often occurs in crystals of zircon..
Quartzoid :: Quartzoid (n.) A form of crystal common with quartz, consisting of two six-sided pyramids, base to base..
Homopolic :: Homopolic (a.) In promorphology, pertaining to or exhibiting that kind of organic form, in which the stereometric ground form is a pyramid, with similar poles. See Promorphology..
Liroconite :: Liroconite (n.) A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color..
Pylon :: Pylon (n.) A low tower, having a truncated pyramidal form, and flanking an ancient Egyptian gateway..
Spire :: Spire (n.) A tapering body that shoots up or out to a point in a conical or pyramidal form. Specifically (Arch.), the roof of a tower when of a pyramidal form and high in proportion to its width; also, the pyramidal or aspiring termination of a tower which can not be said to have a roof, such as that of Strasburg cathedral; the tapering part of a steeple, or the steeple itself..
Cuniform :: Cuniform (n.) One of the carpal bones usually articulating with the ulna; -- called also pyramidal and ulnare.
Right :: Right (a.) Upright; erect from a base; having an upright axis; not oblique; as, right ascension; a right pyramid or cone..
Pyramidical :: Pyramidical (a.) Of or pertaining to a pyramid; having the form of a pyramid; pyramidal.
Pyramidic :: Pyramidic (a.) Alt. of Pyramidica.
Macropyramid :: Macropyramid (n.) See Macroprism.
Pyramidion :: Pyramidion (n.) The small pyramid which crowns or completes an obelisk.
Pyramidoid :: Pyramidoid (n.) A solid resembling a pyramid; -- called also pyramoid.
Macroprism :: Macroprism (n.) A prism of an orthorhombic crystal between the macropinacoid and the unit prism; the corresponding pyramids are called macropyramids.
Corona :: Corona (n.) A crown or circlet suspended from the roof or vaulting of churches, to hold tapers lighted on solemn occasions. It is sometimes formed of double or triple circlets, arranged pyramidically. Called also corona lucis..
Sphenoid :: Sphenoid (n.) A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.
Diamond :: Diamond (n.) A pointed projection, like a four-sided pyramid, used for ornament in lines or groups..
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