Mining. [f. BUCK v.5 + -ING1.] A peculiar manner of bruising ore practised in mines in Cornwall and Derbyshire; see quot. Attrib. in bucking hammer, iron, plate.
1875. Ure, Dict. Arts, II. 85. In small mines Bucking is resorted to…. This operation consists of pounding pieces of mixed ore on a slab of iron by means of a hammer or bucker. Ibid., I. 548. A bucking iron is a flat iron fixed on a handle, with which the ore is crushed; and a bucking plate is an iron plate on which the ore is placed to be crushed.
