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pyramid Idioms & Phrases


Altitude of a pyramid

  • (Geom.), the perpendicular distance from the vertex to the plane of the base.
Webster 1913

Axis of a pyramid

  • (Geom.), a straight line drawn from the vertex to the center of the base.
Webster 1913

Earth pillarspyramids

  • (Geol.), high pillars or pyramids of earth, sometimes capped with a single stone, found in Switzerland. Lyell.
Webster 1913

Earth pyramid

  • . (Geol.) See Earth pillars, under Earth.
Webster 1913

food pyramid

  • noun (ecology) a hierarchy of food chains with the principal predator at the top; each level preys on the level below
WordNet

great pyramid

  • noun a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt
    Great Pyramid; Pyramid.
WordNet

pyramid bugle

  • noun European evergreen carpeting perennial
    Ajuga pyramidalis.
WordNet

pyramid plant

  • noun any of various tall perennial herbs constituting the genus Frasera; widely distributed in warm dry upland areas of California, Oregon, and Washington
    American columbo; American gentian; deer's-ear; columbo; deer's-ears.
WordNet

pyramid scheme

  • noun a fraudulent scheme in which people are recruited to make payments to the person who recruited them while expecting to receive payments from the persons they recruit; when the number of new recruits fails to sustain the hierarchical payment structure the scheme collapses with most of the participants losing the money they put in
WordNet

pyramids of egypt

  • noun a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt
    Great Pyramid; Pyramid.
WordNet

Right cone, Right cylinder, Right prism, Right pyramid

  • (Geom.), a cone, cylinder, prism, or pyramid, the axis of which is perpendicular to the base.
Webster 1913

Right pyramid

  • (Geom.) a pyramid whose axis is perpendicular to the base.
Webster 1913

Truncated conepyramid

  • (Geom.), a cone or pyramid whose vertex is cut off by a plane, the plane being usually parallel to the base.
Webster 1913

truncated pyramid

  • noun a frustum formed from a pyramid
WordNet