Meaning of running in | Babel Free

Definitions

The operating of a new engine (especially that of a motor vehicle) at less than its normal speed until proper working has been established.

uncountable

Equivalents

Examples

“For years past Pacific locomotives of all classes have⟳ worked between Kings Cross and Cambridge, […] both in order⟳ usefully to fill⟳ in gaps in their long-distance rosters, and also for running-in purposes after overhaul. Before the war the 7.18 a.m. slow from Kings Cross to Cambridge was a regular running-in turn⟳ for express⟳ locomotives stationed at Kings Cross shed⟳.”

“[...] moreover, there are times of pressure when, to expedite deliveries, cars may be driven in what should otherwise be the running-in period at speeds that do them no good - and over long distances too.”

CEFR level