1. (noun) large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters

• long-fin tunny
• thunnus alalunga

1. (noun) relatively small tuna with choice white flesh; major source of canned tuna

• tuna
• tuna fish
• tunny

2. (noun) large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters

• tuna
• tunny