1. A unit of dry measure, formerly used in Britain for coal and other commodities, equal to about 36 bushels.
Usage: archaic; historical; chiefly British

Examples

• The coal merchant sold the fuel by the chaldron.
• A chaldron of coal was a standard commercial quantity in medieval England.
• The price was quoted per chaldron rather than by weight.
• Historical records show chaldrons were used to measure grain and other dry goods.