A grill or system of taverns occur a window or door or utilized as a partition; a grate.
A diffraction grating.
A barrier that parallel or crossed bars blocking a passage but admitting environment.
A-frame of iron bars to carry a fire
A partition, addressing, or framework of synchronous or cross pubs; a latticework resembling a window grate.
A system of close equidistant parallel outlines or pubs, esp. outlines ruled in a polished area, used for producing spectra by diffraction; -- labeled as also diffraction grating.
The strong wooden lattice accustomed cover a hatch, admitting light and environment; also, a movable Lattice employed for the floors of ships.
A harsh sound due to attrition.
The work of scrubbing harshly; the harsh sound due to the rasping or scraping of difficult, rough figures; the impression from harsh attrition.
A partition or framework of parallel or crossing bars; an open latticework of wood or metal serving as a cover or shield, but admitting light, atmosphere, etc., as with the fair-weather hatches of a ship, the address of the lips of a drain or sewer, etc.
In optics: An arrangement of parallel wires in an airplane, designed to produce spectra by diffraction: particularly labeled as a real grating.
some good synchronous lines on a surface of cup or polished steel ruled very close together, at price of 10,000 to 20,000, or even 40,000, into the inch: distinctively called a diffraction or diffractive grating.
A timber framework composed of beams which cross one another at right sides to guide the foundation of a heavy building in light, free soil.
In metallurgy, the work of separating large from small ore. See grate, n.
optical product consisting of a surface with many parallel grooves inside; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its range
a-frame of metal bars to keep a fire
a barrier which includes parallel or entered pubs preventing a passage but admitting atmosphere