| chemical prophylaxis | The administration of chemicals or drugs to members of a community to reduce the number of carriers of a disease and to prevent others contracting the disease. (05 Mar 2000) |
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| chemical ray | A light ray toward and beyond the violet end of the spectrum that acts upon a photographic plate and produces other chemical effects. Synonym: chemical ray. (05 Mar 2000) |
| chemical reaction | <chemistry> A process in which one or more substances are changed chemically into one or more different substances. (09 Oct 1997) |
| chemical repair | Conversion of a free radical to a stable molecule. (05 Mar 2000) |
| chemical sampling | A sample that is obtained by whatever means is convenient and then purified of irrelevant elements before analysis; the assumption of thorough mixing is not necessary. (05 Mar 2000) |
| chemical sequencing | A lab technique used to determine the sequence of nucleotides in a DNA molecule. The DNA molecule is labelled with radioactive phosphorous (chemical element P), cut into fragments, and analysed through electrophoresis. (09 Oct 1997) |
| chemical shift | Dependence of the resonance frequency of a nucleus on the chemical binding of the atom or molecule in which it is contained. See: chemical shift artifact. (05 Mar 2000) |
| chemical shift artifact | In magnetic resonance imaging, a dark band caused by a biochemical difference in resonant frequency of adjacent regions rather than a true anatomic separation. (05 Mar 2000) |
| chemical solution | See: solution. (05 Mar 2000) |
| chemical sympathectomy | Destruction of the periareterial sympathetic nerves, as in Doppler's operation, by a corrosive such as phenol. (05 Mar 2000) |
| chemical synapse | <physiology> A nerve nerve or nerve muscle junction where the signal is transmitted by release from one membrane of a chemical transmitter that binds to a receptor in the second membrane. Importantly, signals only pass in one direction. (18 Nov 1997) |
| chemical synergism | Interaction of chemicals in a mixture to produce a greater toxic effect than would be expected from the sum of the toxicities of the individual chemicals. (09 Oct 1997) |
| chemical taxonomy | An approach to the classification of organisms based on the distribution of natural products. (05 Mar 2000) |
| chemical warfare | Tactical warfare using incendiary mixtures, smokes, or irritant, burning, or asphyxiating gases. (12 Dec 1998) |
| chemical warfare agents | Chemicals that are used to cause the disturbance, disease, or death of humans during war. (12 Dec 1998) |
Synonyms : Chemicals and Ingredients, Ingredients and Chemicals
Synonyms : Agricultural Chemistries, Chemistries, Agricultural
Synonyms : Analytical Chemistry, Chemistry, Analytic, Analytic Chemistry
Synonyms : Bioinorganic Chemistries, Chemistries, Bioinorganic
Synonyms :
| chemical formula |
formula: a representation of a substance using symbols for its constituent elements
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| chemist |
pharmacist: a health professional trained in the art of preparing and dispensing drugs
출처: wordnet.princeton.edu/perl/webwn
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| chemical energy |
that part of the energy in a substance that can be released by a chemical reaction
출처: wordnet.princeton.edu/perl/webwn
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| Chemical Mace |
Mace: (trademark) a liquid that temporarily disables a person; prepared as an aerosol and sprayed in the face, it irritates the eyes and causes dizziness and immobilization
출처: wordnet.princeton.edu/perl/webwn
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| chemically |
by the use of chemicals; "chemically fertilized" with respect to chemistry; "chemically different substances"
출처: wordnet.princeton.edu/perl/webwn
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| chem | a representation of a substance using symbols for its constituent elements |
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| chem | (chemistry) two or more atoms bound together as a single unit and forming part of a molecule |
| chem | a manufacturer of chemicals |
| chem | a substance producing irritation |
| chem | (trademark) a liquid that temporarily disables a person |
| chem | the atomic process that occurs during a chemical reaction |
| chem | a notation used by chemists to express technical facts in chemistry |
| chem | warfare using chemical agents to kill or injure or incapacitate the enemy |
| chem | (chemistry) any natural phenomenon involving chemistry (as changes to atoms or molecules) |
| chem | an industrial plant where chemicals are produced |
| chem | (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved |
| chem | a property used to characterize materials in reactions that change their identity |