pyramid

noun [C]

/ˈpɪr.ə.mɪd/

Definition

C1 a solid object with a square base and four triangular sides that form a point at the topGeometrical shapesSpherical, circular and annular objects › a pile of things that has the shape of a pyramid: The acrobats formed a pyramid by standing on each other's shoulders.figurative Many organizations have a pyramid structure (= there are fewer people at the top levels of them than there are at the bottom).Geometrical shapesSpherical, circular and annular objects

(Definition of pyramid noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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