chemistry (redirected from Chemical sciences)

chemistry /chem·is·try/ (kem´is-tre) the science dealing with the elements and atomic relations of matter, and of various compounds of the elements.

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colloid chemistry  chemistry dealing with the nature and composition of colloids.

inorganic chemistry  that branch of chemistry dealing with compounds not occurring in the plant or animal worlds.

organic chemistry  that branch of chemistry dealing with carbon-containing compounds.

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chem·is·try (km-str)

n. Abbr. chem.

1. The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems.

2. The composition, structure, properties, and reactions of a substance.

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chemistry

[kem′istrē]

Etymology: Gk, chemeia, alchemy

the science dealing with the elements, their compounds, and the molecular structure and interactions of matter. Classifications of chemistry include inorganic chemistry and organic chemistry.

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chemistry, normal values,

the amounts of various substances in the normal human body, determined by testing a large sample of people presumed to be healthy. Normal values are expressed in ranges of numbers, and ranges vary for different age groups and from laboratory to laboratory. For example, a normal concentration of a substance in the blood might be expressed as 5 to 20 mg/dL. Although variations from normal values may be highly significant tools in the diagnoses of certain diseases, in all cases an abnormal result must be cautiously interpreted. See also specific tests.

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chemistry,

n the science dealing with the elements, their compounds, and the molecular structure and interactions of matter.

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chemistry

the science that treats of the elements and atomic relations of matter, and of the various compounds of the elements.

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colloid chemistry

chemistry dealing with the nature and composition of colloids.

inorganic chemistry

the branch of chemistry dealing with inorganic compounds.

organic chemistry

the branch of chemistry dealing with organic compounds, those characterized by carbon-carbon bonds, i.e. all compounds containing carbon except oxides of carbon, carbides and carbonates.