English edit

Etymology edit

inter- +‎ league

Adjective edit

interleague (not comparable)

  1. (sports) Between leagues; often specifically between the two major leagues of American baseball.
    • 2007 March 2, Richard Sandomir, “How Will Selig Sell the Extra Innings Deal to Fans?”, in New York Times[1]:
      And he must not try to sell this as an innovation, like interleague play, or a labor coup, like expanding drug testing.