chemistry

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chemistry

 [kem´is-tre]
the science that treats of the elements and atomic relations of matter, and of the various compounds of the elements.
colloid chemistry chemistry dealing with the nature and composition of colloids.
inorganic chemistry the branch of chemistry dealing with compounds that do not contain carbon-carbon bonds (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.

chem·is·try

(kem'is-trē),
1. The science concerned with the atomic composition of substances, the elements, and their interreactions, as well as the formation, decomposition, and properties of molecules.
2. The chemical properties of a substance.
3. Chemical processes.
[G. chēmeia, alchemy]

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.
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.

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.

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.

chem·is·try

(kem'is-trē)
1. The science concerned with the atomic composition of substances, the elements and their interreactions, and the formation, decomposition, and properties of molecules.
2. The chemical properties of a substance.
3. Chemical processes.
[G. chēmeia, alchemy]

chem·is·try

(kem'is-trē)
Science concerned with atomic composition of substances, the elements, and their interreactions.
[G. chēmeia, alchemy]

chemistry,

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

chemistry

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

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.