[too-nuh, tyoo-] 
) -na, (especially referring to two or more kinds or species) -nas. | 1. | any of several large food and game fishes of the family Scombridae, inhabiting temperate and tropical seas. Compare albacore, bluefin tuna, yellowfin tuna. |
| 2. | any of various related fishes. |
| 3. | Also called tuna fish. the flesh of the tuna, used as food. |