English definition of Chemistry

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Definition of chemistry

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Chemistry (n.) That branch of science which treats of the composition of substances, and of the changes which they undergo in consequence of alterations in the constitution of the molecules, which depend upon variations of the number, kind, or mode of arrangement, of the constituent atoms. These atoms are not assumed to be indivisible, but merely the finest grade of subdivision hitherto attained. Chemistry deals with the changes in the composition and constitution of molecules. See Atom, Molecul

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Alchemistry :: Alchemistry (n.) Alchemy.

Phytochemical :: Phytochemical (a.) Relating to phytochemistry.

Aqua :: Aqua (n.) Water; -- a word much used in pharmacy and the old chemistry, in various signification, determined by the word or words annexed..

Stereobate :: Stereo- () A combining form meaning solid, hard, firm, as in stereo-chemistry, stereography..

Trial :: Trial (n.) Examination by a test; experiment, as in chemistry, metallurgy, etc..

Iatrochemical :: Iatrochemical (a.) Of or pertaining to iatrochemistry, or to the iatrochemists..

Zinco- :: Zinco- () A combining form from zinc; in chemistry, designating zinc as an element of certain double compounds. Also used adjectively..

Literature :: Literature (n.) The collective body of literary productions, embracing the entire results of knowledge and fancy preserved in writing; also, the whole body of literary productions or writings upon a given subject, or in reference to a particular science or branch of knowledge, or of a given country or period; as, the literature of Biblical criticism; the literature of chemistry..

Chemistry :: Chemistry (n.) An application of chemical theory and method to the consideration of some particular subject; as, the chemistry of iron; the chemistry of indigo..

Profession :: Profession (v.) That of which one professed knowledge; the occupation, if not mechanical, agricultural, or the like, to which one devotes one's self; the business which one professes to understand, and to follow for subsistence; calling; vocation; employment; as, the profession of arms; the profession of a clergyman, lawyer, or physician; the profession of lecturer on chemistry..

Neo- :: Neo- () A prefix meaning new, recent, late; and in chemistry designating specifically that variety of metameric hydrocarbons which, when the name was applied, had been recently classified, and in which at least one carbon atom in connected directly with four other carbon atoms; -- contrasted with normal and iso-; as, neopentane; the neoparaffins. Also used adjectively..

Thermochemistry :: Thermochemistry (n.) That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions..

System :: System (n.) An assemblage of objects arranged in regular subordination, or after some distinct method, usually logical or scientific; a complete whole of objects related by some common law, principle, or end; a complete exhibition of essential principles or facts, arranged in a rational dependence or connection; a regular union of principles or parts forming one entire thing; as, a system of philosophy; a system of government; a system of divinity; a system of botany or chemistry; a military sys

Electro-chemistry :: Electro-chemistry (n.) That branch of science which treats of the relation of electricity to chemical changes.

Zoochemy :: Zoochemy (n.) Animal chemistry; zoochemistry.

Language :: Language (n.) The vocabulary and phraseology belonging to an art or department of knowledge; as, medical language; the language of chemistry or theology..

-ate :: -ate () In chemistry it is used to denote the salts formed from those acids whose names end -ic (excepting binary or halogen acids); as, sulphate from sulphuric acid, nitrate from nitric acid, etc. It is also used in the case of certain basic salts..

Chemistry :: Chemistry (n.) A treatise on chemistry.

Chymistry :: Chymistry () See Chemic, Chemist, Chemistry..

Nomenclature :: Nomenclature (n.) The technical names used in any particular branch of science or art, or by any school or individual; as, the nomenclature of botany or of chemistry; the nomenclature of Lavoisier and his associates..