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Pertaining to a dendrite, or to arborescent crystallization; having a form resembling a shrub or tree; arborescent.

zation of light (Opt.), a change in the plane of polarization of rays, especially by a crystalline medium, such that the light which had been extinguished by the analyzer reappears as if the polarization had been anulled. The word is inappropriate, as the ray does not return to the unpolarized condition.…

ten glassy matter into a stony mass by slow cooling, the result being the formation of crystallites, microbites, etc., in the glassy base, which are then called devitrification products.

A sirupy, or white crystalline, variety of sugar, C6H12O6 (so called from turning the plane of polarization to the right), occurring in many ripe fruits. Dextrose and levulose are obtained by the inversion of cane sugar or sucrose, and hence called invert sugar. Dextrose is chiefly obtained by the action of heat and ac…

A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.

The separation of different substances in solution, as crystalloids and colloids, by means of their unequal diffusion, especially through natural or artificial membranes.

Having two of the intersections between the three axes oblique. See Crystallization.

A red crystalline nitrogenous substance or artificial production, which by reduction passes directly to indigo.

Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite.

Crystallizing under two forms fundamentally different, while having the same chemical composition.

A colorless, crystalline hydrocarbon, C20H14, obtained from naphthylene, and consisting of a doubled naphthylene radical.

A crystallized variety of pyroxene, of a clear, grayish green color; mussite.

An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone.

A white, crystalline, nitrogenous substance obtained by the reduction of isatin. It is a member of the indol series; -- hence its name.

A white crystalline substance, C6H5.C6H5, obtained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united.

A crystalline nitrogenous base, C10H8N2, obtained by the reduction of pyridine.

red rays, arising from their different refrangibilities. Dispersion of the optic axes (Crystallog.), the separation of the optic axes in biaxial crystals, due to the fact that the axial angle has different values for the different colors of the spectrum.

Toward a distal part; on the distal side of; distally.

A white, crystalline, aromatic hydrocarbon, C14H14, consisting of two radicals or residues of toluene.

s. It occurs in distinct crystals, and in extensive beds as a compact limestone, often crystalline granular, either white or clouded. It includes much of the common white marble. Also called bitter spar.