# Definition:Semiregular Polyhedron

## Definition

A semiregular polyhedron is a polyhedron with the following properties:

$(1): \quad$ Each of its faces is a regular polygon
$(2): \quad$ It is vertex-transitive
$(3): \quad$ The faces are not all congruent.

## Also known as

Many sources present this as semi-regular, but $\mathsf{Pr} \infty \mathsf{fWiki}$ prefers the simplicity of the unhyphenated version of this term.