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Webster’s Dictionary (1828)



613 words match “MICA”

AQUILA n.
Cygnus and preceding the Dolphin; the Eagle. Aquila alba Etym: [L., white eagle], an alchemical name of calomel. Brande & C.
ARCHCHEMIC a.
Of supreme chemical powers. [R.] "The archchemic sun." Milton.
ARGON n.
A substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness. Rayleigh and Ramsay.
ARMIL n.
An ancient astronomical instrument.
ARMILLARY a.
, a bracelet or ring; consisting of rings or circles. Armillary sphere, an ancient astronomical machine composed of an assemblage of rings, all circles of the same sphere, designed to represent the positions of the important circles of the celestial sphere. Nichol.
ARSENIC n.
elements, a solid substance resembling a metal in its physical properties, but in its chemical relations ranking with the nonmetals. It is of a steel-gray color and brilliant luster, though usually dull from tarnish. It is very brittle, and sublimes at 356º Fahrenheit. It is sometimes found native, but usually combine…
ART n.
Those branches of learning which are taught in the academical course of colleges; as, master of arts. In fearless youth we tempt the heights of arts. Pope. Four years spent in the arts (as they are called in colleges) is, perhaps, laying too laborious a foundation. Goldsmith.
ASH-FIRE n.
A low fire used in chemical operations.
ASSAY v.
To subject, as an ore, alloy, or other metallic compound, to chemical or metallurgical examination, in order to determine the amount of a particular metal contained in it, or to ascertain its composition.
ASTERISM n.
bit a star- shaped by reflected light, as star sapphire, or by transmitted light, as some mica.
ASTRONOMIC a.
Astronomical.
ASTROPHYSICAL a.
Pertaining to the physics of astronomical science.
ASTROPHYSICS n.
treating of the physical characteristics of the stars and other heavenly bodies, their chemical constitution, light, heat, atmospheres, etc.
ASTROSCOPE n.
An old astronomical instrument, formed of two cones, on whose surface the constellations were delineated.
ATTACK n.
The beginning of corrosive, decomposing, or destructive action, by a chemical agent.
ATTENUATE v.
To make thin or slender, as by mechanical or chemical action upon inanimate objects, or by the effects of starvation, disease, etc., upon living bodies.
AUTUMN n.
son of the year, or the season between summer and winter, often called "the fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and Nove…
AUTUNITE n.
hosphate of uranium and calcium occurring in tabular crystals with basal cleavage, and in micalike scales. H., 2- 2.5. Sp. gr., 3.05-3.19.
AVENTURINE n.
A variety of translucent quartz, spangled throughout with scales of yellow mica. ~= feldspar, a variety of oligoclase with internal firelike reflections due to the presence of minute crystals, probably of hematite; sunstone.
AVERSE a.
who were averse to the life of camps. Macaulay. Pass by securely as men averse from war. Micah ii. 8.
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