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