Definitions for "Subarray"
a defined region of the CCD in which data will be taken, rather than the entire chip
a reduced region of all of the active(turned on) CCDs that will be read
a reduced region of the CCDs (all of the CCDs that are turned on) that will be read
a "byte-slice" of an array
an object in its own right - its type is that of a suitable multi-dimensional array
a section of a array, typically selected by some combination of scalar and triplet subscripts