Longman Dictionary of Contemporary English
Wiktionary
a. (context of training English) obtained whilst working
WordNet
adj. relating to or associated with a job or employment; "on-the-job training"; "on-the-job requirements"
Usage examples of "on-the-job".
Since on-the-job stress was not a recognized factor, the Postal Service did nothing to prevent its managers from conducting work speedups or bullying workers to increase productivity.
The nonideologically involved Teamsters want to prove their on-the-job mettle by working for wages that anticapitalists spurn.
Clatterman promptly announced that he really didn't know diddly-shit about the cryptographic machine when he came aboard, and that despite Chief Schultz's on-the-job training on the voyage, he was still baffled by most of what he was supposed to do.
On-the-job relationships frequently overlap friendships, and less often, neighbor relationships.
Still, Holman wasn't the first tank driver to get on-the-job training in a crisis.
Still, Holman wasnt the first tank driver to get on-the-job training in a crisis.