The act of subtracting points; deducting points (often in tests or judging) — to deduct points.
誤字があったので答案は減点された。
Because there was a typo, the answer sheet was marked down.
審査員はルール違反でその演技に減点をした。
The judges deducted points from that performance for a rule violation.
提出が遅れたため、レポートは減点対象になった。
Because the submission was late, the report was subject to point deductions.
Points deducted (the amount of points taken away).
今回の減点は合計で3点だった。
The total points deducted this time were three.
ルール違反による減点が順位を左右した。
Deductions for rule violations affected the rankings.