grindstone

(redirected from Grindstones)
Also found in: Dictionary, Thesaurus, Idioms.

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

grindstone

[′grīnd‚stōn]
(engineering)
A stone disk on a revolving axle, used for grinding, smoothing, and shaping.

grindstone

A rotating solid stone wheel (usually sandstone) used for grinding, shaping, sharpening, or polishing.

grindstone

or grind common metaphor for industriousness. [Pop. Culture: Misc.]
References in periodicals archive ?
A clamp holds the chain firm at just the right angle, while the spinning grindstone swivels down into the leading edge of the cutter.
lt;BAbove, Workers producing grindstones at a Tyneside quarry
Stone: According to a publication of 1649 "A Scot, a rat, and a Newcastle grindstone you may find all the world over.
This is the region where the prominent Ngintaka tradition likewise stresses the lack of good stone for seed-processing grindstones (James and Tregenza 2014).
More than 55 grindstones made of gneiss--a hard rock similar to granite--dating back to between 2000 BC and 1500 BC were retrieved.
Supporters were celebrating after scooping the funding to secure the future of the 19th century building, which - with its grindstones, lathes, hand-powered bellows and hearths - provides a unique snapshot of the traditional industry and which they hope to turn into a working museum.
Re: Which grain grinder is best (July/August, 2004), in 1999 I got a Mil-Rite by Retsel with both the stone and steel grindstones.
Grindstones, rock chips, arrowheads and other artifacts lie all around the area.
We found an arrow tip, flint and obsidian pieces, volcanic rock grindstones and planes for making bowls," said National Heritage spokesman Gilberto Sanchez.
At the Goltepe site, the Smithsonian researchers counted 250,000 grindstones near the mine's mouth.
Loss through breakage during trimming was also high, though many of the broken slabs were recycled as smaller grindstones.
I bet that would get noses to grindstones and cut down the mucking about that disrupts so many classrooms.