distractor
🇺🇸
/dɪˈstræktər/
🇬🇧
/dɪˈstræktə(r)/
something that takes your attention away from what you're supposed to be focusing on
The noise outside was a big distractor during the exam.
an incorrect answer option in a multiple-choice question
The distractor in the question was very similar to the correct answer, which made the test tricky.