**Relevance**ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.

## Synonyms for equilateral

*adj*

**four-sided**

## Explore Dictionary.com

## Antonyms for equilateral

## Word Origin & History

## Example Sentences for equilateral

These are the equilateral triangle, the square and the regular hexagon.

Are you aware, Mr Gascoigne, of the properties of an equilateral triangle?

These are the equilateral triangle, the square, and the regular hexagon.

Form of the outer shell not a sphere, but a regular octahedron, with eight congruent, equilateral triangular even faces.

Marginal spines ten to twelve, equilateral triangular, deeply sulcated, about half as long and broad as the radius of the disk.

Cortical shell hexangular, equilateral, four times as broad as the circular, Triopyle-shaped medullary shell.

Cortical shell hexangular, equilateral, five times as broad as the triangular, Triopyle-shaped medullary shell.

Mitral and basal rings of equal size, equilateral triangular, both connected at the corners by three vertical equal columell.

The Tetrahedron, having four equilateral triangles as faces.

The Octahedron, having eight equilateral triangles as faces.