The name for the major-league teams that conduct spring training and play exhibition games against each other in Florida.
“Florida’s so-called Grapefruit League baseball season began today in earnest, with four of the ten major league clubs training in the State engaged in exhibition play” (The New York Times, March 8, 1928, p.18). See also Limestone League. Compare Cactus League. Syn. citrus circuit; “Grapefruit Circuit”; “Grapefruit Loop.” 1st use. 1924. “[Donie Bush retained] the leadership that he enjoys at the head of the grapefruit league” (N.W. Baxter, The Washington Post, March 26).