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.
References in periodicals archive ?
By extending our research agreement with mPhase, we continue to explore applications for the nanotechnology-based chemistries and structures that our group has developed for high-density energy storage," said Glenn Amatucci, director of the Energy Storage Research Group at Rutgers.
The development agreement mPhase has with Rutgers continues to build on mPhase's current work to develop micro batteries that are capable of supporting a range of lithium based chemistries for applications requiring primary, reserve or rechargeable power systems.
This is crucial, as recent clinical failures by other antisense chemistries have all implicated safety issues.
He noted, "This technology is state-of-the-art and has significant advantages over alternative chemistries.
Forward-looking statements include, but are not limited to, those with respect to improving synthetic nucleic acid molecules for use in therapeutic and diagnostic applications, facilitating the adaptation of cutting-edge developments in nucleic acid chemistry for use in production-scale processes, the adaptation of next-generation nucleic acid chemistries for use in diagnostic and therapeutic applications, and the application of phosphoramidate-based oligonucleotides in a broad range of therapeutic products.
Moreover, this will help Planar meet its goal of supplying the semiconductor industry with the most advanced critical cleaning equipment using only water or benign chemistries.
Conventional concentrated chemistries, as well as advanced dilute, ozone and gas-to-chemical chemistries that reduce cycle time and EHS impact, can be used in the system.
The SYNCHRON LX20 PRO boasts 1,440 tests per hour and can analyze -- in just 42 seconds -- the more routine chemistries, which include albumin, BUN (blood urea nitrogen), calcium ISE (ion selective electrode), carbon dioxide, chloride, creatinine, glucose, phosphorus, potassium, sodium and total protein.
Axys earned a milestone under the agreement in September 1998 in connection with the attainment of certain drug discovery goals making use of Axys' chemistries.
The semiconductor industry has been investigating new gas chemistries in an effort to reduce global warming emissions.
The CX9 ALX system's expanded menu offers general, critical care, TDMs and DATs, proteins, serologies, and esoteric chemistries.