multiextent

From multi- +‎ extent.

multiextent (not comparable)

1. (computing) Consisting of more than one extent.
   • 1994, H. Frank Cervone, VSE/ESA JCL: Utilities, Power, and VSAM, page 107:

     For a multiextent file, all extents on one physical device must use the same logical unit number; the definition of the extents must be in consecutive, ascending order.