Subsystem

An element of a system that, in itself may constitute a system.

subsystem

noun a system that is part of some larger system
Found on https://www.encyclo.co.uk/local/20974

Subsystem

Any one of several components in a photovoltaic system (i.e., array, controller, batteries, inverter, load).
Found on http://www.encyclo.co.uk/local/21690

subsystem

In computing, hardware and/or software that performs a specific function within a larger system. Silicon Graphics, for example, uses subsystems to perform the many calculations needed for computer animation
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0051468.html

subsystem

[n] - a system that is part of some larger system
Found on http://www.webdictionary.co.uk/definition.php?query=subsystem
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