roching, vbl. n.
(ˈrəʊtʃɪŋ)
Also 7, 9 roaching.
[f. roche v. + -ing1.]
The action of the vb. roche; chiefly attrib. in roching cask, pan.
| 1631 E. Jorden Nat. Bathes vii. (1669) 45 The shooting or roching of concrete juyces, is worthy to be observed. 1670 W. Simpson Hydrol. Ess. 68 Their last decoction, which is performed in their roaching pan. 1839 Ure Dict. Arts 38 Whenever..dissolved in a saturated state, it is run off into the crystallising vessels, which are called roching casks. 1854 Pharmac. Jrnl. XIII. 622 The formation of large masses of the alum,..by means of ‘roaching’ or ‘rocking’. 1888 W. White Month in Yorks. 120 When of the required density, the liquor is run off from the pan to the ‘roching casks’—great butts rather, big as a sugar hogshead. |