either of the two main professional baseball leagues in the U.S.
a league of corresponding stature in certain other sports, as ice hockey, football, or basketball.
ma•jor-leaguePronunciation: (mā'jur-lēg'), [key]
of, pertaining to, or characteristic of the major leagues.
belonging to or among the best or most important of its kind: a major-league orchestra.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.