General English

General Science

  • noun noise on a signal


  • Interaction of radiation from more than one source, but of a single wavelength, to produce a stationary wave pattern called an interference pattern. The pattern is bright where the waves add and dark where they subtract. Interference patterns contain information about the detailed structure of emissions in visible or other wavelengths of electromagnetic radiation and can be used to provide details of the structure of materials on the scale of the wavelength of light, e.g. the optical accuracy of a telescope mirror. A familiar example is a Moiré (e acute) pattern.


Cars & Driving


  • noun the act of interfering


  • Any obstruction that prevents planned or normal usage or operations.
  • cooling tower effluent that enters the intake of an adjacent tower.

Information & Library Science

  • noun unwanted signals causing difficulty in reception on a computer or broadcasting system


  • noun the process of deliberately getting involved with something that is not your concern

Media Studies

  • noun unwanted signals from other sources that disrupt radio, telephone or television reception