at bat

Short definition from Wiktionary

Prepositional phrase

1. 1
   In the batter's box.

Noun

1. 1
   A final resolution to a batter's turn at the plate which does not result in a walk, a hit by pitch, a sacrifice hit or sacrifice fly, or catcher interference
2. 2
   An opportunity to hit.
3. 3
   official at-bats. Batting opportunities minus walks, hit by pitches, and sacrifices