A game in which a pitcher allows the opposing team 5 hits.(noun)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "five-hitter" in a sentence
"Hamels struck out nine in a five-hitter, Chase Utley homered and the Phillies beat the Reds 2-0 on Sunday night to finish off the franchise's first playoff sweep."
"In pitching a five-hitter, Waits beat the Yankees 9-2."
"Against left-handed starters, like Wandy Rodriguez, Riggleman wants to hit Adam Dunn third and Ryan Zimmerman fourth so five-hitter Josh Willingham can protect Zimmerman."