Wiktionary
n. (context sports English) A strength sport, consisting of three events: the squat, the bench press, and the deadlift. The maximum weight lifted in each event is totalled for a final score.
Wikipedia
Powerlifting is a strength sport that consists of three attempts at maximal weight on three lifts: squat, bench press, and deadlift. As in the sport of Olympic weightlifting, it involves lifting weights in three attempts. Powerlifting evolved from a sport known as "odd lifts", which followed the same three-attempt format but used a wider variety of events, akin to strongman competition. Eventually odd lifts became standardized to the current three.
In competition, lifts may be performed equipped or un-equipped (typically referred to as 'raw' lifting or 'classic' in the IPF specifically). Equipment in this context refers to a supportive bench shirt or squat/deadlift suit or briefs. In some federations, knee wraps are permitted in the equipped but not un-equipped division; in others, they may be used in both equipped and un-equipped lifting. Weight belts, knee sleeves, wrist wraps and special footwear may also be used, but are not considered when distinguishing equipped from un-equipped lifting.
Competitions take place across the world but mostly in the United States, Australia, Canada, United Kingdom, Colombia, Iceland, South Africa, Poland, Sweden, Norway, Finland, Russia, Taiwan, Japan and Ukraine. Powerlifting has been a Paralympic sport ( bench press only) since 1984 and, under the IPF, is also a World Games sport. Local, national and international competitions have also been sanctioned by other federations operating independently of the IPF.