Definition of tuna Tuna
/tuˈnʌ/ - [tunu] - tu•na
We found 15 definitions of tuna from 7 different sources.
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What does tuna mean?
WordNet
NounPlural: tuna |
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| tuna - any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm waters | ||
| tunny | ||
| scombroid, scombroid fish important marine food and game fishes found in all tropical and temperate seas; some are at least partially endothermic and can thrive in colder waters | ||
| food fish any fish used for food by human beings | ||
| genus thunnus, thunnus tunas: warm-blooded fishes | ||
| long-fin tunny, thunnus alalunga, albacore large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters | ||
| thunnus thynnus, bluefin, bluefin tuna, horse mackerel largest tuna; to 1500 pounds; of mostly temperate seas: feed in polar regions but breed in tropics | ||
| thunnus albacares, yellowfin yellowfin tuna | ||
| tuna - important warm-water fatty fish of the genus Thunnus of the family Scombridae; usually served as steaks | ||
| tuna fish, tunny | ||
| saltwater fish flesh of fish from the sea used as food | ||
| tunny, tuna New Zealand eel | ||
| albacore large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters | ||
| bonito any of various scombroid fishes intermediate in size and characteristics between mackerels and tunas | ||
| tuna - New Zealand eel | ||
| Anguilla sucklandii | ||
| tuna - tropical American prickly pear of Jamaica | ||
| Opuntia tuna | ||
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Wiktionary 
Webster DictionaryWebster's Unabridged Dictionary 📘
- tuna (n.)
The Opuntia Tuna. See Prickly pear, under Prickly. - tuna (n.)
The tunny. - tuna (n.)
The bonito, 2.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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tuna
Several species of ocean-dwelling fish in the family Scombridae, mostly in the genus Thunnus.
Chambers DictionaryChamber's 20th Century Dictionary 📕
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tuna
tū′na, n. a prickly pear, also its fruit
Wikipedia 
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Tuna, sometimes called tunafish, are several species (kinds) of fish. All of them live in the ocean. They are in the family Scombridae, mostly in the genus "Thunnus".
Tna are fast swimmers. People have seen tuna swim at up to 77km/h. Several species of tuna are warm-blooded. Most species of fish have white flesh. The flesh of the tuna is different. It is pink to dark red. This is because tuna muscle tissue contains greater quantities of myoglobin. Myoglobin is a molecule that binds oxygen. Some of the larger tuna species such as the Northern bluefin tuna can raise their blood temperature above the water temperature with muscular activity. This enables them to live in cooler waters and survive a wider range of circumstances.
Tuna as a commercial fish.
Tuna is an important commercial fish. Some varieties of tuna, such as the bluefin and bigeye tuna are threatened by overfishing, dramatically affecting tuna populations in the Atlantic and northwestern Pacific Oceans. Other populations seem to support fairly healthy fisheries (for example, the central and western Pacific skipjack tuna), but there is mounting evidence that overfishing threatens tuna fisheries world-wide.
Some fishermen in Australia now grow Southern bluefin tuna in fish farms. Fish farms are areas of water with nets around them, where farmers raise (keep and grow animals) fish. Some tuna farms are circular nets forty meters in diameter and twenty meters deep. The fishermen catch the tuna at sea, and then they keep
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