Definitions for no-hitter
Random House Webster's College Dictionary
a baseball game in which a pitcher allows no base hits to the opposing team.
Origin of no-hitter:
no-hit game, no-hitter(noun)
a game in which a pitcher allows the opposing team no hits
A game in which no batter on one of the teams got a hit.
Not many pitchers can say they threw two no-hitters in their career.