Prism vs Refracts - What's the difference?

As a noun prism

is (geometry) a polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.

(refract).

(en noun)

(geometry) A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.

A transparent block in the shape of a prism (typically with triangular ends), used to split or reflect light.

A crystal in which the faces are parallel to the vertical axis.

* antiprism * Nicol prism * prismatic * prismatically * prismatoid * primoid * prismatoid * triangular prism

(head)

(refract)

(en verb)

(of light) To change direction as a result of entering a different medium

(optics) To cause (light) to change direction as a result of entering a different medium.

A prism can refract light.

* refracting