fly ball

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A ball that is batted in a high arc, usually to the outfield.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun baseball, softball A batted ball that has been hit into the air above the outfield; a fly.
• noun slang A geek; beatnik.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun (baseball) a hit that flies up in the air