pyramid Definition

pyramid
noun

1. Any of the huge ancient Egyptian royal tombs built on a square base, with four sloping triangular sides meeting in a common apex.
2. geom.
A solid of this shape, with a square or triangular base.
3. Any structure or pile, etc of similar shape.

Derivative: pyramidal
adj

Derivative: pyramidally
adverb

Derivative: pyramidic
adj

Derivative: pyramidically
adverb

Etymology: 16c as pyramis: from Greek pyramis, pyramidos.