| VNTR | variable number of tandem repeats; variable copy number tandem repeats |
|---|---|
| ADR | activation, depression, repetition [in bone remodeling]; adrenodoxin reductase; Adriamycin; adverse ... |
| HiPRF | high pulse repetition frequency |
| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
| PRF | partial reinforcement; patient report form; perforin; plasma recognition factor; pontine reticular f... |
| 1 RM | 1 repetition maximum |
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| RM | 1-repetition maximum |
| 1 RM | One-repetition maximum |
| PRF | Pulse Repetition Frequency |
| RB | Repetition blindness |
| repetition | 1. The act of repeating; a doing or saying again; iteration. "I need not be barren of accusations; he hath faults, with surplus to tire in repetition." (Shak) 2. Recital from memory; rehearsal. 3. The act of repeating, singing, playing, the same piece or part a second time; reiteration of a note. 4. Reiteration, or repeating the same word, or the same sense in different words, for the purpose of making a deeper impression on the audience. 5. <astronomy> The measurement of an angle by successive observations with a repeating instrument. Synonym: Iteration, rehearsal. See Tautology. Origin: L. Repetitio: cf. F. Repetition. See Repeat. Source: Websters Dictionary (01 Mar 1998) |
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| repetition-compulsion | In psychoanalysis, the tendency to repeat earlier experiences or actions, in an unconscious effort to achieve belated mastery over them; a morbid need to repeat a particular behaviour such as handwashing or repeated checking to see if the door is locked. (05 Mar 2000) |
| repetition-compulsion principle | In psychoanalysis, the impulse to redramatise or reenact earlier emotional experiences or situations. Synonym: principle of inertia. (05 Mar 2000) |
| repetition rate | The number of pulses per minute, describing an energy outpute.g., ultrasound pulses in echocardiography rather than vascular pulses. (05 Mar 2000) |
| repetition/replication | There are four plots in a repetition/replication, the early, mid and late seral treatment plots and a control plot. A repetition/replication is also called a "block." There should be at least three repetitions/ replications in a research study to obtain statistical reliability. (05 Dec 1998) |
| repetition time | In magnetic resonance imaging, the time between repetitions of the pulse sequence. (05 Mar 2000) |
| atomic number | <chemistry> Symbol Z. The number of protons in the nucleus of an atom and also its characteristic atomic number. The atomic numbers of the known elements form a complete series from 1 (hydrogen) to 103 (lawrencium). (16 Dec 1997) |
| Avogadro's number | <physics> The number of molecules in a mole (gram molecular weight) of a substance, equals 6.02 x 1023 molecules. (09 Oct 1997) |
| Brinell hardness number | A number related to the size of the permanent impression made by a ball indenter of specified size (usually 10 mm in diameter) pressed into the surface of the material under a specified load: where P = applied load in kg, D = diameter of the ball in mm, and d = diameter of the impression in mm. (05 Mar 2000) |
| burst number | The number of viral particles that emerge from a cell after a viralinfection has burst it open. (09 Oct 1997) |
| Mach number | A number representing the ratio between the speed of an object moving through a fluid medium, such as air, and the speed of sound in the same medium. (05 Mar 2000) |
| magnetic mach number | <physics> A dimensionless number equal to the ratio of the velocity of a fluid to the velocity of Alfven waves in that fluid. (13 Nov 1997) |
| mass number | The mass of the atom of a particular isotope relative to hydrogen-1 (or to 1/12 the mass of carbon-12), generally very close to the whole number represented by the sum of the protons and neutrons in the atomic nucleus of the isotope (indicated in the name or symbol of the isotope; e.g., oxygen-16, 16O); not to be confused with the atomic weight of an element, which may include a number of isotopes in natural proportion. (05 Mar 2000) |
| Reichert-Meissl number | An index of the volatile acid content of a fat; the number of milliliters of 0.1 n KOH required to neutralise the soluble volatile fatty acids in 5 g of fat that has been saponified, acidified to liberate the fatty acids, and then steam-distilled. Synonym: volatile fatty acid number. (05 Mar 2000) |
| volatile fatty acid number | An index of the volatile acid content of a fat; the number of milliliters of 0.1 n KOH required to neutralise the soluble volatile fatty acids in 5 g of fat that has been saponified, acidified to liberate the fatty acids, and then steam-distilled. Synonym: volatile fatty acid number. (05 Mar 2000) |
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