Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of crystal is as below...

Snow :: Snow (n.) Watery particles congealed into white or transparent crystals or flakes in the air, and falling to the earth, exhibiting a great variety of very beautiful and perfect forms..

Whewellite :: Whewellite (n.) Calcium oxalate, occurring in colorless or white monoclinic crystals..

Xanthin :: Xanthin (n.) A crystalline nitrogenous body closely related to both uric acid and hypoxanthin, present in muscle tissue, and occasionally found in the urine and in some urinary calculi. It is also present in guano. So called from the yellow color of certain of its salts (nitrates)..

Theobromine :: Theobromine (n.) An alkaloidal ureide, C7H8N4O2, homologous with and resembling caffeine, produced artificially, and also extracted from cacao and chocolate (from Theobroma Cacao) as a bitter white crystalline substance; -- called also dimethyl xanthine..

Hesperetin :: Hesperetin (n.) A white, crystalline substance having a sweetish taste, obtained by the decomposition of hesperidin, and regarded as a complex derivative of caffeic acid..

Magma :: Magma (n.) The amorphous or homogenous matrix or ground mass, as distinguished from well-defined crystals; as, the magma of porphyry..

Roching Cask :: Roching cask () A tank in which alum is crystallized from a solution.

Castorin :: Castorin (n.) A white crystalline substance obtained from castoreum.

Biotite :: Biotite (n.) Mica containing iron and magnesia, generally of a black or dark green color; -- a common constituent of crystalline rocks. See Mica..

Brewsterite :: Brewsterite (n.) A rare zeolitic mineral occurring in white monoclinic crystals with pearly luster. It is a hydrous silicate of aluminia, baryta, and strontia..

Vanadinite :: Vanadinite (n.) A mineral occurring in yellowish, and ruby-red hexagonal crystals. It consist of lead vanadate with a small proportion of lead chloride..

Morin :: Morin (n.) A yellow crystalline substance of acid properties extracted from fustic (Maclura tinctoria, formerly called Morus tinctoria); -- called also moric acid..

Mesitylol :: Mesitylol (n.) A crystalline substance obtained from mesitylene.

Effloresce :: Effloresce (v. i.) To become covered with a whitish crust or light crystallization, from a slow chemical change between some of the ingredients of the matter covered and an acid proceeding commonly from an external source; as, the walls of limestone caverns sometimes effloresce with nitrate of calcium in consequence of the action in consequence of nitric acid formed in the atmosphere..

Anorthite :: Anorthite (n.) A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See Feldspar..

Linnaeite :: Linnaeite (n.) A mineral of pale steel-gray color and metallic luster, occurring in isometric crystals, and also massive. It is a sulphide of cobalt containing some nickel or copper..

Saltpetre :: Saltpetre (n.) Potassium nitrate; niter; a white crystalline substance, KNO3, having a cooling saline taste, obtained by leaching from certain soils in which it is produced by the process of nitrification (see Nitrification, 2). It is a strong oxidizer, is the chief constituent of gunpowder, and is also used as an antiseptic in curing meat, and in medicine as a diuretic, diaphoretic, and refrigerant..

Conhydrine :: Conhydrine (n.) A vegetable alkaloid found with conine in the poison hemlock (Conium maculatum). It is a white crystalline substance, C8H17NO, easily convertible into conine..

Cachalot :: Cachalot (n.) The sperm whale (Physeter macrocephalus). It has in the top of its head a large cavity, containing an oily fluid, which, after death, concretes into a whitish crystalline substance called spermaceti. See Sperm whale..

Feldspath :: Feldspath (n.) A name given to a group of minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The colors are usually white or nearly white, flesh-red, bluish, or greenish..

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