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A unit of dry measure formerly used in England, equal to 4 quarters or about 32 bushels for grain and 36 bushels for coal.
[Middle English, from Old French chauderon, augmentative of chaudiere, kettle, from Late Latin caldāria; see cauldron.]
(Units) a unit of capacity equal to 36 bushels. Formerly used in the US for the measurement of solids, being equivalent to 1.268 cubic metres. Used in Britain for both solids and liquids, it is equivalent to 1.309 cubic metres
[C17: from Old French chauderon cauldron]
an English dry measure formerly used for coal, coke, lime, etc., varying locally from 32 to 36 bushels or more.
[1375–1425; late Middle English, earlier chaudron < Middle French chauderon cauldron]
A measure of volume. 1 chaldron = 36 bu.