sparesystem
nounUK /ˈspeəˌsɪstəm/
US /ˈsperˌsɪstəm/
A spare system is an extra set of parts or machines kept ready in case the main one breaks.
The hospital keeps a spare system of backup generators in case the power goes out.
RELATED WORDS
OTHER MEANINGS
2. A secondary computer or network setup that takes over when the primary one fails.
The data center switched to its spare system during the outage.
3. An extra set of equipment stored for future use or replacement.
Engineers stored a spare system of sensors in the warehouse.
4. A redundant arrangement in engineering that provides a safety net.
The spacecraft's spare system activated automatically after the fault.