pay ‧ load /ˈpeɪləʊd $ -loʊd/ BrE AmE noun
1 . [uncountable and countable] the amount of goods or passengers that can be carried by a vehicle, or the goods that a vehicle is carrying ⇨ cargo
payload of
The helicopter is designed to carry a payload of 2,640 pounds.
2 . [countable] the amount of explosive that a ↑ missile can carry