1. Horse Racing A weight of 28 pounds (one of 40 pounds is called a heavy welterweight) sometimes imposed in addition to weight for age, chiefly in steeplechases and hurdle races.
2. A boxer or wrestler whose weight is intermediate between that of a lightweight and that of a middleweight.
n 1: a weight of 28 pounds; sometimes imposed as a handicap in a
horse race (such as a steeple chase or hurdle race)
2: an amateur boxer who weighs no more than 148 pounds
3: a wrestler who weighs 154-172 pounds
4: a professional boxer who weighs between 141 and 147 pounds