The deviation of an electromagnetic wavefront from the path predicted by geometric optics when the wavefront interacts with, i.e. , is restricted by, a physical object such as an opening ( aperture ) or an edge. ( 188 ) Note: Diffraction is usually most noticeable for openings of the order of a wavelength . However, diffraction may still be important for apertures many orders of magnitude larger than the wavelength.
Meaning of DIFFRACTION in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012