MTBF
/ˌɛm.tiː.biːˈɛf/ · Noun · Development · Origin: 1960
Definitions
Mean Time Between Failures. The average time a repairable system operates between successive failures, calculated as total uptime divided by the number of failures.
In plain English: How long a system typically runs between breakdowns. A higher number means the system is more reliable and breaks less often.
Example: "Our MTBF for the payment service went from 72 hours to 30 days once we fixed that connection pool leak — we finally stopped getting paged every weekend."