tuna meaning and definition

TUNA noun

Definition of tuna (noun)

1. tropical American prickly pear of Jamaica
   • synonyms: Opuntia tuna
2. important warm-water fatty fish of the genus Thunnus of the family Scombridae; usually served as steaks
   • synonyms: tuna fish, tunny
3. any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm waters
   • synonyms: tunny
4. New Zealand eel
   • synonyms: Anguilla sucklandii