subsystem

noun sub·sys·tem \ ˈsəb-ˌsi-stəm \
variants: or less commonly sub-system

Definition of subsystem

plural subsystems also sub-systems
: a system that is part of a larger system
  • These subsystems of the climate system include the atmosphere, the oceans (both upper and deep oceans), the sea ice, the ice sheets, the land surface, and the biota.
  • —Stephen H. Schneider
  • Voyager 2 was the troublesome twin. Even before launch, failures in its onboard computer subsystems had to be rectified. The problems continued after liftoff as the attitude-control subsystem behaved in an unexpected fashion.
  • —William I. McLaughlin

First Known Use of subsystem

1756

in the meaning defined above

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