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truncated pyramid

truncated pyramid

7.2
A pyramid with the top cut off by a flat cut parallel to its base
  • noun
  • /trʌŋˈkeɪtɪd ˈpɪrəmɪd/
  • Specialized
translation icon : pirámide truncada
  • In geometry class, we learned how to calculate the volume of a truncated pyramid using specific formulas.

Examples

  • Can you visualize a truncated pyramid in three dimensions?

  • The monument was designed with a truncated pyramid as its base.

  • In geometry class, we learned how to calculate the volume of a truncated pyramid.

  • The sculpture resembled a truncated pyramid standing on a square platform.

  • The architect designed a truncated pyramid for the new building.

  • The artist created a stunning sculpture in the shape of a truncated pyramid that showcased his skills.

  • The cake was designed as a truncated pyramid, with layers getting progressively smaller towards the top.

Surface Forms

Morphology

truncated + pyramid

The noun phrase 'truncated pyramid' is transparently compositional: 'truncated' (cut or with the top removed) modifies 'pyramid', so the phrase denotes a pyramid with its top portion removed (a frustum). This adjective+noun combination follows standard compositional patterns and is cross-linguistically predictable, so a B1 learner who knows both constituents can reliably infer the meaning.

Etymology

Truncated pyramid is a name that comes from the picture of a pyramid whose top has been truncated, or 'cut off'. That's why it means the shape you get when a pyramid's top is removed and a flat top remains.