grindstone


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grindstone

1. 
a. a machine having a circular block of stone or composite abrasive rotated for sharpening tools or grinding metal
b. the stone used in this machine
c. any stone used for sharpening; whetstone
2. another name for millstone
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

grindstone

[′grīnd‚stōn]
(engineering)
A stone disk on a revolving axle, used for grinding, smoothing, and shaping.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

grindstone

A rotating solid stone wheel (usually sandstone) used for grinding, shaping, sharpening, or polishing.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

grindstone

or grind common metaphor for industriousness. [Pop. Culture: Misc.]
Allusions—Cultural, Literary, Biblical, and Historical: A Thematic Dictionary. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Some smaller designs use tiny grindstones, but they're slow, and the grindstones don't last long enough to be practical.
The sandstone grindstones of Tyneside were in great demand, with 23 quarries alone in the Heworth area of Gateshead and more in Windy Nook, Springwell, Eighton Banks, Kenton, Burradon and Wideopen.
This study borrowed the data dictionaries for grindstone, ability, and standout adjectives from Schmader et al.
Alternatively, water may be mixed with the seed prior to grinding (Brokensha 1975:25) or splashed on the grindstone during use, though the use of water in processing is clearly quite variable and the scarcity of water in this part of the desert probably limits the extent of this.
But after Schrader submitted his first cut, the film's producers, financiers and distributor Grindstone Entertainment (a subsidiary of Lionsgate) asked for extensive changes.
Cogs turning, grindstone making flour, on a tide without fish, with swarms of busy bees.
"That means back to the grindstone, hard graft and a fight on our hands.
but without tying themselves down completely, nose to the grindstone, as they did during their pre-retirement work life.
* Nose to the Grindstone: 79% of Baby Boomers plan to work in some capacity after they retire, according to retirement community builder Del Webb.
Although a bit of banter is encouraged in some, most places are nose to the grindstone with supervisors parading around constantly urging you to reach unrealistic targets and the fear of the sack hanging over those that are not hitting them.