| quantivalence | <chemistry> Valence. Origin: L. Quantus how much + E. Valence. Source: Websters Dictionary (01 Mar 1998) |
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| quantivalent | <chemistry> Of or pertaining to quantivalence. Source: Websters Dictionary (01 Mar 1998) |
| quantum | <unit> The fundamental unit of electromagnetic energy. (09 Oct 1997) |
| quantum efficiency | The number of photons required for the formation of one oxygen molecule in photosynthesis. Varies from 8-14 depending on the system used to measure it. (18 Nov 1997) |
| quantum evolution | An extremely rapid evolutionarychange in a single genetic lineage, thought to result from a sudden and radical change in the species'environment. (09 Oct 1997) |
| quantum limit | The shortest wavelength found in an X-ray spectrum. (05 Mar 2000) |
| quantum mottle | Mottle caused by the statistical fluctuation of the number of photons absorbed by the intensifying screens to form the light image on the film; faster screens produce more quantum mottle. (05 Mar 2000) |
| quantum rectum | See: Q.R. Origin: L. However much is correct (05 Mar 2000) |
| quantum requirement | The number of quanta of light absorbed required for the transformation of one molecule; the inverse of the quantum yield. (05 Mar 2000) |
| quantum satis | See: q.s. Origin: L. However much is enough Quantum sink, in radiological imaging, the stage at which statistical information reaches its lowest level because of a low photon flux. (05 Mar 2000) |
| quantum speciation | The rapid evolution of a newspecies from a small population that ispartially or totally isolated from the parent population, the rapidspeciation occurs due to geneticdrift and founder effect and usuallyinvolves a few mutations that have a big impact on the organisms' observable physical traits. (09 Oct 1997) |
| quantum sufficiat | See: q.s. Origin: L. However much is enough (05 Mar 2000) |
| quantum theory | The theory that the radiation and absorption of energy take place in definite quantities called quanta (e) which vary in size and are defined by the equation e=hv in which h is planck's constant and v is the frequency of the radiation. (12 Dec 1998) |
| quantum vis | See: q.v.. Origin: L. However much you wish (05 Mar 2000) |
| quantum yield | The number of photons required for the formation of one oxygen molecule in photosynthesis. Varies from 8-14 depending on the system used to measure it. (18 Nov 1997) |
| quantile |
Quantiles are essentially points taken at regular vertical intervals from the cumulative distribution function of a random variable. Dividing ordered data into q essentially equal-sized data subsets is the motivation for q-quantiles; the quantiles are the data values marking the boundaries between consecutive subsets. ...
Ãâó: en.wikipedia.org/wiki/Quantile
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| quanta |
Discrete increment.
Ãâó: highered.mcgraw-hill.com/sites/0072480823/student_...
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| quantile |
A generic term for any fraction that divides a collection of observations arranged in order of magnitude into two specific parts. Thus, the upper quartile is the quantile that separates the upper one-quarter from the lower three-quarters of the observations. See also percentile, decile.
Ãâó: amsglossary.allenpress.com/glossary/browse
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| quantitative trait |
A measurable trait that shows continuous variation; a trait that can not be classified into a few discrete classes.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E20.htm
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| quantity |
a characteristic of a system that can be well described and possibly assigned values. Energy, linear momentum, and angular momentum are examples of quantities associated with all systems.
Ãâó: library.thinkquest.org/3042/glossary.html
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| quant | expressible as a quantity or relating to or susceptible of measurement |
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| quant | (of verse) having a metric system based on relative duration of syllables |
| quant | relating to the measurement of quantity |
| quant | chemical analysis to determine the amounts of each element in the substance |
| quant | chemical analysis to determine the amounts of each element in the substance |
| quant | a relation between magnitudes |
| quant | in a quantitative manner |
| quant | how much there is of something that you can measure |
| quant | an adequate or large amount |
| quant | something that has a magnitude and can be represented in mathematical expressions by a constant or a variable |
| quant | a measure of the quantity of electricity (determined by the amount of an electric current and the time for which it flows) |
| quant | the act of dividing into quanta or expressing in terms of quantum theory |
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