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Pulvinic :: Pulvinic (a.) Pertaining to, or designating, an acid obtained by the decomposition of vulpinic acid, as a white crystalline substance..

Lactimide :: Lactimide (n.) A white, crystalline substance obtained as an anhydride of alanine, and regarded as an imido derivative of lactic acid..

Datolite :: Datolite (n.) A borosilicate of lime commonly occuring in glassy,, greenish crystals..

Sphenoid :: Sphenoid (n.) A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.

Natrolite :: Natrolite (n.) A zeolite occuring in groups of glassy acicular crystals, and in masses which often have a radiated structure. It is a hydrous silicate of alumina and soda..

Oxanillamide :: Oxanillamide (n.) A white crystalline nitrogenous substance, obtained indirectly by the action of cyanogen on aniline, and regarded as an anilide of oxamic acid; -- called also phenyl oxamide..

Ricinelaidin :: Ricinelaidin (n.) The glycerin salt of ricinelaidic acid, obtained as a white crystalline waxy substance by treating castor oil with nitrous acid..

Digitain :: Digitain (n.) A supposedly distinct vegetable principle as the essential ingredient of the extracts. It is a white, crystalline substance, and is regarded as a glucoside..

Kairine :: Kairine (n.) A pale buff or white crystalline alkaloid derived from quinoline, and used as an antipyretic in medicine..

Orpiment :: Orpiment (n.) Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing..

Carbostyril :: Carbostyril (n.) A white crystalline substance, C9H6N.OH, of acid properties derived from one of the amido cinnamic acids..

Potash :: Potash (n.) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash)..

Trimorphism :: Trimorphism (n.) The property of crystallizing in three forms fundamentally distinct, as is the case with titanium dioxide, which crystallizes in the forms of rutile, octahedrite, and brookite. See Pleomorphism..

Quinine :: Quinine (n.) An alkaloid extracted from the bark of several species of cinchona (esp. Cinchona Calisaya) as a bitter white crystalline substance, C20H24N2O2. Hence, by extension (Med.), any of the salts of this alkaloid, as the acetate, chloride, sulphate, etc., employed as a febrifuge or antiperiodic. Called also quinia, quinina, etc..

Valeramide :: Valeramide (n.) The acid amide derivative of valeric acid, obtained as a white crystalline substance..

Tin :: Tin (n.) An elementary substance found as an oxide in the mineral cassiterite, and reduced as a soft white crystalline metal, malleable at ordinary temperatures, but brittle when heated. It is not easily oxidized in the air, and is used chiefly to coat iron to protect it from rusting, in the form of tin foil with mercury to form the reflective surface of mirrors, and in solder, bronze, speculum metal, and other alloys. Its compounds are designated as stannous, or stannic. Symbol Sn (Stannum). At

Diopside :: Diopside (n.) A crystallized variety of pyroxene, of a clear, grayish green color; mussite..

Anisometric :: Anisometric (a.) Not isometric; having unsymmetrical parts; -- said of crystals with three unequal axes.

Protopine :: Protopine (n.) An alkaloid found in opium in small quantities, and extracted as a white crystalline substance..

Pyromucic :: Pyromucic (a.) Pertaining to, derived from, or designating, an acid obtained as a white crystalline substance by the distillation of mucic acid, or by the oxidation of furfurol..

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