Definitions for unloader
Random House Webster's College Dictionary
to take the load or cargo from.
to remove or discharge (cargo, passengers, etc.).
to remove the charge from (a firearm).
to relieve of anything burdensome, oppressive, etc.
to express freely, as feelings or grievances; pour out.
to get rid of (goods, shares of stock, etc.) by sale in large quantities.
(v.i.)to unload something.
Origin of unload:
Agent noun of unload; one who unloads.
Origin: unload + -er
one who, or that which, unloads; a device for unloading, as hay from a wagon