The practice of tallying the number of voted, spoiled, damaged, provisional, emergency, unused and any other ballots and making sure that tally equals the number of ballots received.
Source: Counting Votes 2012: A State by State Look at Voting Technology Preparedness, Verified Voting Foundation, the Rutgers Law School Newark Constitutional Litigation Clinic, and Common Cause, https://countingvotes.org/sites/default/files/CountingVotes2012_Final_August2012.pdf