| active carbon dioxide | Activated carbon dioxide, a complex of N-carboxybiotin (biotin + CO2) and an enzyme; the form in which carbon dioxide is added to other molecules in carboxylations; e.g., to methylcrotonyl-CoA to form beta-methylglutaconyl in the catabolism of leucine, and to acetyl-CoA to form malonyl-CoA. See: acetyl-CoA carboxylase. (05 Mar 2000) |
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| active caries | Microbial-induced lesions of teeth that are increasing in size. (05 Mar 2000) |
| active centre | The part of a macromolecule at which a substrate or ligand, upon binding, produces biological activity; for an enzyme, this is the catalytic centre, the site on an enzyme that catalyses the reaction. (05 Mar 2000) |
| active congestion | Congestion due to an increased flow of arterial blood to a part. (05 Mar 2000) |
| active electrode | A small electrode whose exciting effect is used to stimulate or record potentials from a localised area. Synonym: exciting electrode, localizing electrode, therapeutic electrode. (05 Mar 2000) |
| active formaldehyde | A hydroxymethyl derivative of tetrahydrofolate or thiamin pyrophosphate, N5,N10-methylenetetrahydrofo late. (05 Mar 2000) |
| active formyl | The formyl group taking part in transformylation reactions with a folic acid derivative in the role of carrier. (05 Mar 2000) |
| active immunity | <immunology> An organisms resistance to disease or infection, developed because the organisms immune system has produced antibodies after an infection or innoculation. (06 May 1997) |
| active immunization | The production of active immunity. (05 Mar 2000) |
| active inflammation | Any inflammation that has a fairly rapid onset, quickly becomes severe, usually manifested for only a few days, but may persist for several days or even a few weeks. Synonym: active inflammation. (05 Mar 2000) |
| active labour | Contractions resulting in progressive effacement and dilation of the cervix. (05 Mar 2000) |
| active length-tension curve | The relationship between active isometric tension and preload (rest length) for a contracting muscle. (05 Mar 2000) |
| active metal | <chemistry> Any very reactive metal, such as magnesium or sodium, most are located in the first two columns of the periodic table. (15 Jan 1998) |
| active methionine | S-(5'-deoxy-5'-adenosyl)-l-methionine;condensation product of adenosine and l-methionine involving replacement of the -OPO3H2 of adenylic acid by -S+ (CH3)CH2CH2CH(NH3+)CO 2 of methionine; a sulfonium compound bearing a methyl group that is transferred in transmethylation reactions. See: methionine adenosyltransferase. Synonym: active methionine. Acronym: SAM (05 Mar 2000) |
| active methyl | A methyl group attached to a quaternary ammonium ion or a tertiary sulfonium ion that can take part in transmethylation reactions; e.g., methyl groups in choline and in S-adenosyl-l-methionine, which are thus methyl donors. (05 Mar 2000) |
Synonyms : Nucleo-cytoplasmic Transport, Export, Nuclear, Import, Nuclear, Nucleo cytoplasmic Transport, Transport, Nuclear, Transport, Nucleo-cytoplasmic, Transport, Nucleocytoplasmic, Transports, Nucleo-cytoplasmic
Synonyms : Activin Receptor, Activin Receptor-like Kinase, Receptor, Activin, Activin Receptor like Kinase, Activin Receptor like Kinases, Kinase, Activin Receptor-like, Kinases, Activin Receptor-like, Receptor-like Kinase, Activin, Receptor-like Kinases, Activin
Synonyms : Activin Receptor Like Kinases, Type I
Synonyms : Activin Receptors Type II
Synonyms : Activin, FSH-Releasing Protein, FSH Releasing Protein, Protein, FSH-Releasing
| activated charcoal |
activated carbon: powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons
출처: wordnet.princeton.edu/perl/webwn
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| active immunity |
a form of acquired immunity in which the body produces its own antibodies against disease-causing antigens
출처: wordnet.princeton.edu/perl/webwn
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| active medium |
the aggregated atoms, ions, or molecules, contained in a laser's optical cavity, in which stimulated emission will occur under the proper excitation.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| activity coefficient |
the ratio of the activity (of an electrolyte) as measured by some property, such as the depression of the freezing point of a solution, to the true concentration (molality). It is usually less than 1 and increases as the solution becomes more dilute, approaching unity at infinite dilution, when the attractive forces between oppositely charged ions become negligible.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| activated sludge |
sludge from aerated sewage, consisting mainly of aerobic bacteria (eg, Sphaerotilus, Zoogloea), protozoa (eg, Opercularia, Vorticella), yeasts, and molds. Further treatment consists of anaerobic digestion. A portion serves as inoculum for a succeeding batch of screened and sedimented raw sewage.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| activ | full of activity or engaged in continuous activity |
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| activ | (pathology) tending to become more severe or wider in scope |
| activ | disposed to take action or effectuate change |
| activ | producing activity or change |
| activ | (of e.g. volcanos) being in a state of action or potential action |
| activ | (grammar) expressing action rather than a state of being |
| activ | (grammar) active voice |
| activ | exerting influence or producing an effect |
| activ | (astronomy |
| activ | in a state of habitual or vigorous activity |
| activ | characterized by energetic bodily activity |
| activ | in operation |