Definition:Prism/Base

Definition

 * Prism.png

The bases of a prism are the two parallel polygons which form the faces at either end of the prism.

In the above diagram, the faces $ABCDE$ and $FGHIJ$ are the bases of the prism.

Also known as
The bases of a prism can be referred to as their end faces or endfaces.

The term base can suggest that the prism be specifically situated so that one of the end faces is coincident with a plane of reference, which may be misleading.