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g, an acid of the acetylene series, isologous with stearis acid, and obtained, as a white crystalline substance, from oleïc acid.

The ketone of stearic acid, obtained as a white crystalline substance, (C17H35)2.CO, by the distillation of calcium stearate.

A mineral of a lead-gray color and brilliant metallic luster, occurring in prismatic crystals; sulphide of antimony; -- called also antimony glance, and gray antimony.

A hydrocarbon, C14H12, produced artificially in large, fine crystals; -- called also diphenyl ethylene, toluylene, etc.

y, a hydrous silicate of alumina and lime, usually occurring in sheaflike aggregations of crystals, also in radiated masses. It is of a white or yellowish color, with pearly luster on the cleavage surface. Called also desmine.

fine grooves, or lines of color; showing narrow structural bands or lines; as, a striated crystal; striated muscular fiber.

r yellowish color, usually occurring in fibrous massive forms, but sometimes in prismatic crystals.

A crystalline mineral found in guano. It is a hydrous phosphate of magnesia and ammonia.

the St. Ignatius bean (Strychnos Ignatia) and from nux vomica. It is obtained as a white crystalline substance, having a very bitter acrid taste, and is employed in medicine (chiefly in the form of the sulphate) as a powerful neurotic stimulant. Called also strychnia, and formerly strychnina.

id, obtained by the action of acetic acid and potassium nitrite on uric acid, as a yellow crystalline substance, with a bitter, astringent taste.

l knob; a boss. A belt of straw and ivy buds, With coral clasps and amber studs. Marlowe. Crystal and myrrhine cups, embossed with gems And studs of pearl. Milton.

Pertaining to, or designating, a yellow crystalline astringent acid, (NO2)3.C6H.(OH)2, obtained by the action of nitric acid on resorcin. Styphnic acid resembles picric acid, but is not bitter. It acts like a strong dibasic acid, having a series of well defined salts.

A white crystalline tasteless substance extracted from gum storax, and consisting of a salt of cinnamic acid with cinnamic alcohol.

A white crystalline substance having a sweet taste and a hyacinthlike odor, obtained by the decomposition of styracin; -- properly called cinnamic, or styryl, alcohol.

Imperfectly crystallized.

To subject to the process of sublimation; to heat, volatilize, and condense in crystals or powder; to distill off, and condense in solid form; hence, also, to purify.

aining to, or designating, an acid amide derivative of succinic acid, obtained as a white crystalline substance, and forming a series of salts.

A white crystalline nitrogenous substance, C2H4.(CO)2.NH, obtained by treating succinic anhydride with ammonia gas. It is a typical imido acid, and forms a series of salts. See Imido acid, under Imido.

or designating, an acid amide, analogous to succinamic acid, which is obtained as a white crystalline substance by heating urea with succinic anhydride. It is known also in its salts.

s the sugar cane, sorghum, sugar maple, beet root, etc. It is extracted as a sweet, white crystalline substance which is valuable as a food product, and, being antiputrescent, is largely used in the preservation of fruit. Called also saccharose, cane sugar, etc. By extension, any one of the class of isomeric substances…