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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Superchery :: Superchemical (a.) Above or beyond chemistry; inexplicable by chemical laws.

-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.

Practical :: Practical (a.) Capable of being turned to use or account; useful, in distinction from ideal or theoretical; as, practical chemistry..

Micro-chemical :: Micro-chemical (a.) Of or pertaining to micro-chemistry; as, a micro-chemical test..

Al- :: Al- (A prefix.) The Arabic definite article answering to the English the; as, Alkoran, the Koran or the Book; alchemy, the chemistry..

Neology :: Neology (n.) The introduction of a new word, or of words or significations, into a language; as, the present nomenclature of chemistry is a remarkable instance of neology..

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

Butter :: Butter (n.) Any substance resembling butter in degree of consistence, or other qualities, especially, in old chemistry, the chlorides, as butter of antimony, sesquichloride of antimony; also, certain concrete fat oils remaining nearly solid at ordinary temperatures, as butter of cacao, vegetable butter, shea butter..

Zoochemical :: Zoochemical (a.) Pertaining to zoochemistry.

Zoochemistry :: Zoochemistry (n.) Animal chemistry; particularly, the description of the chemical compounds entering into the composition of the animal body, in distinction from biochemistry..

Magistery :: Magistery (n.) A precipitate; a fine substance deposited by precipitation; -- applied in old chemistry to certain white precipitates from metallic solutions; as, magistery of bismuth..

Chemist :: Chemist (n.) A person versed in chemistry or given to chemical investigation; an analyst; a maker or seller of chemicals or drugs.

Macro-chemistry :: Macro-chemistry (n.) The science which treats of the chemical properties, actions or relations of substances in quantity; -- distinguished from micro-chemistry..

Iatrochemist :: Iatrochemist (n.) A physician who explained or treated diseases upon chemical principles; one who practiced iatrochemistry.

Chemistry :: 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

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..

Biochemistry :: Biochemistry (n.) The chemistry of living organisms; the chemistry of the processes incidental to, and characteristic of, life..

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

Thermo- :: Thermo- () A combining form from Gr. qe`rmh heat, qermo`s hot, warm; as in thermochemistry, thermodynamic..