单词 | grindstone |
释义 | grindstone/ˈɡrʌɪn(d)stəʊn /noun 1A thick disc of stone or other abrasive material mounted so as to revolve, used for grinding, sharpening, or polishing metal objects.This can be done by rubbing away surplus metal with a grindstone, whetstone, oilstone, steel, ceramic rod, leather strop or the palm of your hand....
1.1 rare another term for millstone.The grinding of the grain was done with a grindstone called a Rotary Quern, or a Hand Quern (a small stone on top of a larger stone with the grain in between) if you were poorer....
Phraseskeep one's nose to the grindstone Rhymes |
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