the largest species (Oncorhynchus tshawytscha) of Pacific salmon: it is an endangered species
or chinook salmon
A large salmon (Oncorhynchus tshawytscha) native to northern Pacific waters and stocked in the Great Lakes, characterized by irregular black spots on the back and tail fin. Also called king salmon, quinnat salmon.
(usually uncountable, plural chinook salmon or chinook salmons)
- Oncorhynchus tschawytscha, the largest species in the Pacific salmon family.