TUNA

I. noun Etymology: Spanish, from Taino Date: circa 1555 any of various flat-jointed prickly pears (genus Opuntia ), the edible fruit of a ~, II. noun (plural ~ or ~s) Etymology: American Spanish, alteration of Spanish atún, modification of Arabic tūn, from Latin thunnus, from Greek thynnos Date: 1881 any of numerous large vigorous scombroid food and sport fishes (as an albacore or a bluefin ~), the flesh of a ~ especially when canned for use as food