optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum
A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent
A grating is a flat metal frame with rows of bars across it, which is fastened over a window or over a hole in a wall or the ground. an open grating in the sidewalk
A system of close equidistant and parallel lines lines or bars, especially lines ruled on a polished surface, used for producing spectra by diffraction; called also diffraction grating
An open grid assembly of metal bars, in which the bearing bars, running in one direction, are speced by rigid attachment to cross bars running perpendicular to them or by bent connecting bars extending between them
A grating sound is harsh and unpleasant. She recognized the grating voice of Dr. Sarnoff. a metal frame with bars across it, used to cover a window or hole. a grating sound is hard and unpleasant
Gratings have been made with over 40,000 such lines to the inch, but those with a somewhat smaller number give the best definition
{s} scraping, abrading; irritating; oppressive; making a harsh or abrasive noise, discordant
A pattern of light and dark lines which will diffract light A simple linear grating will disperse white light into a spectrum of colors Holographic gratings can produce many spectra, focused to different distances An image hologram is essentially an extremely complex grating