multivolume

As a noun terms

is .

As an adjective multivolume is

(of a written work) having multiple volumes.

In computing|lang=en terms the difference between volume and multivolume

is that volume is (computing) an accessible storage area with a single file system, typically resident on a single partition of a hard disk while multivolume is (computing) of or relating to more than one volume, or storage area.

As a noun volume

is a unit of three-dimensional measure of space that comprises a length, a width and a height it is measured in units of cubic centimeters in metric, cubic inches or cubic feet in english measurement.

As an adjective multivolume is

(of a written work) having multiple volumes.