dumper

Noun

dump=er

WORDNET DICTIONARY

dumper(n = noun.artifact) dump truck, tip truck, tipper, tipper lorry, tipper truck - truck whose contents can be emptied without handling; the front end of the platform can be pneumatically raised so that the load is discharged by gravity;

is a kind of motortruck, truck

Derived form verb dump₄

dumper, n.
1 a person or thing that dumps.
2 Austral. & NZ a large wave that breaks and hurls the swimmer or surfer on to the beach.