hundredweight

Short definition from Wiktionary

Noun

1. 1
   A measure of weight containing a hundred pounds, variously understood as: A unit of measurement containing 100 avoirdupois pounds (about 45.4 kg).
2. 2
   A measure of weight containing a hundred pounds, variously understood as: A unit of measurement containing 112 avoirdupois pounds (eight stone or about 50.8 kg).
3. 3
   A measure of weight containing a hundred pounds, variously understood as: Synonym of quintal, a unit of measurement containing various amounts depending on the objects weighed.
4. 4
   A measure of weight containing a hundred pounds, variously understood as: Various units of ancient measurement systems consisting of 100 units usually translated as "pounds".