Final answer:
A blackout is a temporary period of impaired memory experienced by a drinker. It is caused by the interference of alcohol with the brain's ability to form long-term memories.
Step-by-step explanation:
A blackout is a temporary period of time during which a drinker is conscious but has impaired powers of memory. It is characterized by an inability to recall events that occurred during the time of intoxication. Blackouts are caused by the interference of alcohol with the brain's ability to form long-term memories.
Learn more about Blackouts and their impact on memory