Definitions

1. noun

A four-sided geometric shape; a quadrilateral.

“The tetragon in the math textbook had four right angles.”

2. noun

A quadrilateral figure, especially one with four equal sides, used in geometry and architecture.

“The ancient Greeks used the tetragon in their architectural designs.”

3. noun

A square or rectangle, especially one with a square base.

“The tetragon of the pyramid served as its foundation.”