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2. a unit of weight in Great Britain, the equivalent of 14 pounds (avoirdupois), or about 6.34 kg.
kidney stone see kidney stone.


1. Synonym(s): calculus
2. A British unit of weight for the human body, equal to 14 pounds.
[A.S. stān]


2. a unit of weight in Great Britain, the equivalent of 14 pounds (avoirdupois), or about 6.34 kg.


An abnormal concretion in the body, usually formed of mineral salts and most commonly found in the gallbladder, kidney, or urinary bladder; a calculus.


See calculus.
An indurated material, generally composed of crystallised minerals, or, less commonly, organic materials—e.g., bile, cholesterol


Concrement Medtalk An indurated material, generally composed of crystallized minerals, les commonly, organic materials–eg, bile, cholesterol. See Bladder stone, Gallstone, Kidney stone, Magnesium ammonium phosphate stone, Salivary duct stone.


1. Synonym(s): calculus.
2. A British unit of weight for the human body, equal to 14 lb. or 6.36 kg.
[A.S. stān]


1. Synonym(s): calculus.
2. An abrading instrument.
3. A British unit of weight for the human body, equal to 14 pounds.
[A.S. stān]


n an abrading instrument or tool.
stone, Arkansas, a fine-grained stone, novaculite, used to make hones for the final sharpening of instruments.
stone, artificial,
n (dental stone), a specially calcined gypsum derivative similar to plaster of paris. Because its grains are nonporous, the product is stronger than plaster of paris.
stone, Carborundum 1. a stone made of silicon carbide.
2. an abrasive, handpiece-mounted rotary instrument of various sizes, shapes, and degrees of abrasiveness.
stone, dental,
n (Hydrocal), 1. α-hemihydrate of calcium sulfate.
2. a gypsum product that, when combined with water in proper proportions, hardens in a plasterlike form. Used for making casts and dies.
stone, diamond,
n rotary instruments containing diamond chips as the abrasive. Available in various sizes, shapes, and abrasive consistency. Used for tooth reduction in operative dentistry and crown and bridge prostheses, tooth contouring in the occlusal adjustment procedure, and osseous and gingival contouring in periodontal surgery.
stone die,
stone, lathe,
n (lathe wheel), a grindstone mounted on a chuck and used on a lathe.
stone, mounted point,
n a small abrasive tooth of various shape and size bonded or cemented onto a shaft or mandrel.
stone, pulp,
n See denticle.
stone, rotary,
n the stone in a mandrel-mounted (power-driven) sharpening instrument.
stone, sharpening,
n a hand stone, or a stone driven mechanically, that is used to sharpen instruments.
stones, sharpening cone, cylindrical or rounded rectangular stones used to sharpen curved blades.
stone, wheel,
n a small grindstone of Carborundum or corundum of various grit, mounted on a mandrel; of various thickness, ranging in diameter from ½ to 1 inch (1.3 to 2.5 cm).


1. a calculus.
2. a unit of weight, equivalent in the English system to 14 lb avoirdupois.

milk stone
see milk stone.
stone searcher
see searcher (2).

Patient discussion about stone

Q. Why do i get kidney stones? I am 38 and have had three stones pass so far. Is it the coffee, the meat, the stress, or the damned DNA?! My uncle is in his 50s and has passed over 30 stones!

A. Kidney stones are very common and even without the genetic or familial background people tend to get them. Of course, the more family predisposition you have, the higher are your chances of developing them, which is probably why you did. Also, a diet rich with dairy and calcium can cause your body to store excess calcium, that tends to calcify and create stones. Not drinking enough fluid is also one of the reasons.

Q. how do i cure tonsil stones (tonsiloth)?

A. There are very little literature about this subject, but I heard about treatment in which the crypts (deep and narrow grooves on the tongue in which the stones form) are burned with laser.

As far as I know these stones don't cause damage by themselves so it's not such a common treatment.

You may read more here:

Q. Would kidney stones affect a PSA reading? Would drinking lots of grapefruit juice affect a PSA reading? My husband's PSA reading jumped from a 4.2 to a 17 in @ 2 years' time. How can that be? This man takes all sorts of supplements and really watches his diet. He also takes good care of his body, and does NOT look or act 68.

A. You should get your parathyroid gland checked out. Your calcium level might be causing the kidney stones.

More discussions about stone
References in periodicals archive ?
He loved to party with low-lifes such as prostitutes and tax collectors, and challenged any moral bigots who were without sin to throw the first stone.
But I wonder if his humiliation does not stay with him, leaving him susceptible to the cries of a mob, inclining him to throw the first stone, bequeathing to him the itchiest finger on the trigger?
And I don't know if anyone can throw the first stone and cast judgement on Paul.

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