| CFF | critical flicker fusion [test]; critical fusion frequency; cystic fibrosis factor; Cystic Fibrosis F... |
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| cff | critical flicker fusion; critical fusion frequency |
| FFF | degree of fineness of abrasive particles; field-flow fractionation; flicker fusion frequency |
| MF | magnetic field; meat free; medium frequency; megafarad; membrane filler; merthiolate-formaldehyde [s... |
| FFT | fast Fourier transform; flicker fusion test or threshold |
| CFF | Critical Flicker-Fusion Frequency |
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| CFF | Critical Flicker Fusion |
| CFFT | Critical Flicker Fusion Threshold |
| CFF | Critical Flicker Frequency |
| CFF | Critical Fusion Frequency |
| flicker fusion frequency technique | A technique of perimetry using the criterion of critical fusion frequency. Synonym: flicker fusion frequency technique. (05 Mar 2000) |
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| critical flicker fusion frequency | The minimal number of flashes of light per second at which an intermittent light stimulus no longer stimulates a continuous visual sensation. (05 Mar 2000) |
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| flicker fusion | The point or frequency at which all flicker of an intermittent light stimulus disappears. (12 Dec 1998) |
| capacitance flicker | <physiology> Brief closings of an ion channel during ion channel openings, observed during patch clamp (or rapid transition of an ion channel between open and closed states such that the individual channel openings cannot be distinguished properly due to the limited bandwidth of the patch clamp amplifier.) (16 Dec 1997) |
| flicker | 1. The act of wavering or of fluttering; flucuation; sudden and brief increase of brightness; as, the last flicker of the dying flame. 2. <zoology> The golden-winged woodpecker (Colaptes aurutus); so called from its spring note. Called also yellow-hammer, high-holder, pigeon woodpecker, and yucca. "The cackle of the flicker among the oaks." (Thoureau) Source: Websters Dictionary (01 Mar 1998) |
| flicker perimetry | A technique of perimetry using the criterion of critical fusion frequency. Synonym: flicker fusion frequency technique. (05 Mar 2000) |
| bounce frequency | <physics> The average frequency of oscillation of a particle trapped in a magnetic mirror as it bounces back and forth between its turning points in regions of high magnetic field. (See also trapped particle, turning points, banana orbit). (09 Oct 1997) |
| radio frequency current drive | <radiobiology> Plasma waves in the radio-frequency range can be used to push plasma particles in such a way that current forms in the plasma, this is a method of non-inductive current drive which would allow for steady-state fusion reactors to operate. (09 Oct 1997) |
| radio frequency heating | <radiobiology> Process for heating the plasma by transferring energy to ions or electrons using waves generated by an external oscillator at an appropriate frequency. (This is similar to how a microwave oven heats food.) There are various types: See: ECRH, ICRH, and Lower Hybrid. (09 Oct 1997) |
| radio frequency or radiofrequency | <physics> Term used to describe electromagnetic radiation with frequencies less than infrared, but greater than audio frequencies, i.e., greater than about 15,000 Hz. Wavelengths are therefore less than about 20,000 km and greater than about 0.01 mm. (These numbers are not precise.) (09 Oct 1997) |
| gene frequency | The relative occurence (expressed as a percentage) of a gene in a given population. (09 Oct 1997) |
| recombination frequency | The frequency at which crossingover occurs between two chromosomal loci--the probability that twoloci will become unlinked during meiosis. (09 Oct 1997) |
| resonant frequency | The frequency at which individual magnetic nuclei absorb or emit radiofrequency energy in magnetic resonance studies. Synonym: resonance. (05 Mar 2000) |
| respiratory frequency | The number of breaths per minute. (05 Mar 2000) |
| collision frequency | <chemistry> The rate at which chemical species collide, used in theories of chemical kinetics. Also, the frequency with which gaseous molecules collide. (09 Oct 1997) |
| plasma frequency | <radiobiology> The natural collective oscillation frequency of a charge species (electrons, ions, etc.) in a plasma, in the absence of (or at least parallel to) a magnetic field. Also known as Langmuir or Langmuir-Tonks frequency. See: electrostatic waves, plasma oscillations. (09 Oct 1997) |
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