backload

back +‎ load

backload (plural backloads)

1. A load carried on the return journey of a delivery vehicle.

• backloading (noun)

backload (third-person singular simple present backloads, present participle backloading, simple past and past participle backloaded)

1. To load toward the back, or towards the end of a period
   • 2007 October 17, Geraldine Fabrikant, “New Contract for Moonves Links Pay to CBS’s Results”, in New York Times‎:

     For a grant this size, you would expect either that the vesting occurs over a considerably longer period or is backloaded.

2. (transport) To load (cargo, shipment, etc.) after unloading has been completed.
3. To fill a syringe with solution from the plunger end of the barrel

• frontload

• “backload” (US) / “backload” (UK) in Oxford Dictionaries, Oxford University Press.