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A substance (as albumin, gum, gelatin, etc.) which is of a gelatinous rather than a crystalline nature, and which diffuses itself through animal membranes or vegetable parchment more slowly than crystalloids do; -- opposed to crystalloid.

The active medicinal principle of colocynth; a bitter, yellow, crystalline substance, regarded as a glucoside.

A white, crystalline, bitter substance. See Calumbin.

ely or firmly united, as the particles of solid bodies; firm; close; solid; dense. Glass, crystal, gems, and other compact bodies. Sir I. Newton.

To divide; to mark out into parts or subdivisions. [R.] The crystal surface is comparted all In niches verged with rubies. Glover.

agreement for composition between a debtor and several creditors. -- Composition plane (Crystallog.), the plane by which the two individuals of a twin crystal are united in their reserved positions. -- Composition of forces (Mech.), the finding of a single force (called the resultant) which shall be equal in effect…

n, division (Arith.), the addition, substraction, etc., of compound numbers. -- Compound crystal (Crystallog.), a twin crystal, or one seeming to be made up of two or more crystals combined according to regular laws of composition. -- Compound engine (Mech.), a form of steam engine in which the steam that has been us…

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

A glucoside extracted from the cambium layer of coniferous trees as a white crystalline substance.

A white, crystalline, poisonous substance, regarded as a glucoside, extracted from the lily of the valley (Convallaria Majalis). Its taste is first bitter, then sweet.

A white, crystalline glucoside, of an irritating taste, extracted from the convallaria or lily of the valley.

Green vitriol, or sulphate of iron; a green crystalline substance, of an astringent taste, used in making ink, in dyeing black, as a tonic in medicine, etc. It is made on a large scale by the oxidation of iron pyrites. Called also ferrous sulphate.

giving strength or spirits. Behold this cordial julep here That flames and dances in his crystal bounds. Milton.

A bitter principle obtained from dogwood (Cornus florida), as a white crystalline substance; -- called also cornic acid.

irritating action on the body tissue. Usually it is in the form of a heavy, transparent, crystalline substance, easily soluble, and of an acrid, burning taste. It is a virulent poison, a powerful antiseptic, and an exellent antisyphilitic; called also mercuric bichloride. It is to be carefully distinguished from calom…

The earth alumina, as found native in a crystalline state, including sapphire, which is the fine blue variety; the oriental ruby, or red sapphire; the oriental amethyst, or purple sapphire; and adamantine spar, the hair-brown variety. It is the hardest substance found native, next to the diamond.

A white, crystalline substance, C12H13NO3, obtained as a product of the decomposition of narcotine. It has weak basic properties, and is usually regarded as an alkaloid.

eries of aromatic acids, related to cinnamic acid, the most important of which is a white crystalline substance, HO.C6H4.C2H2.CO2H, obtained from the tonka bean, sweet clover, etc., and also produced artifically.

merly Coumarouna) odorata and consisting essentially of coumarin proper, which is a white crystalline substance, C9H6O2, of vanilla- like odor, regarded as an anhydride of coumaric acid, and used in flavoring. Coumarin in also made artificially.

-- Cream of tartar (Chem.), purified tartar or argol; so called because of the crust of crystals which forms on the surface of the liquor in the process of purification by recrystallization. It is a white crystalline substance, with a gritty acid taste, and is used very largely as an ingredient of baking powders; --…