Definition of roulement in English:

roulement

noun

mass nounMilitary
  • Movement of troops or equipment, especially for a short period of duty to relieve another force.

    as modifier ‘a fresh roulement battalion’
    • ‘Managers show a lot of imagination to get people away for courses, leave and so on - they use a roulement system.’
    • ‘In addition to the roulement of Naval personnel, they had more than 200 contractors and sub-contractors on board, continuing with the installation of equipment and fitting-out.’

Origin

Early 20th century: French, literally ‘rolling’.

Pronunciation

roulement

/ˈruːlmɒ̃/