单词 | roched |
释义 | † rochedadj. Obsolete. Formed into crystals; (of alum) recrystallized (cf. roche v.2 2b). roched petre n. = roche petre n.With quot. 1885 cf. roche lime n. ΚΠ 1666 R. Boyle Origine Formes & Qualities 227 And yet these Christals, though sometimes they would shoot into Prisme-like Figures, as Roch'd Petre; and sometimes [etc.]. 1766 T. H. Croker et al. Compl. Dict. Arts & Sci. III. at Roaching It is scooped into a great cask, where it is suffered to stand and crystalize, and is what they call roach, roached, or rock alum. 1817 G. Young Hist. Whitby II. iv. iii. 814 According to an experiment made with great care by Mr. Bathgate, 50 tons of good burnt mine will yield one ton of roached alum, with skilful management. 1885 E. A. Ormerod Rep. Obs. Injurious Insects 1884 41 A few handfuls of roached lime thrown over the infested plants stopped the evil. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2019). < |
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