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Carbon disulphide; -- so called from certain red compounds which it produces in combination with other substances.

A defense for the shoulder, composed of flexible overlapping plates of metal, used in the 15th century; -- the origin of the modern epaulette. Fairholt.

A composition treating of any particular subject; -- usually shorter and less methodical than a formal, finished treatise; as, an essay on the life and writings of Homer; an essay on fossils, or on commerce.

Constituent substance. And uncompounded is their essence pure. Milton.

burning taste. They are used in essences, perfumery, etc., and include many varieties of compounds; as lemon oil is a terpene, oil of bitter almonds an aldehyde, oil of wintergreen an ethereal salt, etc.; -- called also volatile oils in distinction from the fixed or nonvolatile.

An ethereal salt, or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thus the natural fats are esters of glycerin and the fatty acids, oleic, etc.

e of two different radicals in the same molecule; as, ethyl methyl ether, C2H5.O.CH3. -- Compound ether (Chem.), an ethereal salt or a salt of some hydrocarbon as the base; an ester. -- Ether engine (Mach.), a condensing engine like a steam engine, but operated by the vapor of ether instead of by steam.…

Any compound of ethyl of a binary type; as, potassium ethide.

A compound derived from ethyl alcohol by the replacement of the hydroxyl hydrogen, after the manner of a hydrate; an ethyl alcoholate; as, potassium ethylate, C2H5.O.K.

so obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen. Ethylene series (Chem.), the series if uns…

ne but written thus, CH3.CH to distinguish it from the symmetrical ethylene, CH2.CH2. Its compounds are derived from aldehyde. Formerly called also ethidene.

A composition in the fine arts which is intended, or may serve, for a study.

A prefix used frequently in composition, signifying well, good, advantageous; -- the opposite of dys-.

An unfermentable sugar, obtained as an uncrystallizable sirup by the decomposition of melitose; also obtained from a Tasmanian eucalyptus, -- whence its name.

The fundamental forms of organic life, that are composed of two equal and symmetrical halves. Syd. Soc. Lex.

A genus of perennial, composite herbs including hemp agrimony, boneset, throughwort, etc.

Just or harmonious proportion or movement, as in the composition of a poem, an edifice, a painting, or a statue.

s the lowest melting point which it is possible to obtain by the combination of the given components.

The principle or process of forming from given components the eutectic alloy, or alloy of maximum fusibility.

All the parts which compose a whole collection or aggregate number, considered in their individuality, all taken separately one by one, out of an indefinite bumber. Every man at his best state is altogether vanity. Ps. xxxix. 5. Every door and window was adorned with wreaths of flowers. Macaulay.