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Optical device consisting of a surface with many parallel grooves in it
Answer for the clue "Optical device consisting of a surface with many parallel grooves in it ", 7 letters:
grating
Alternative clues for the word grating
Word definitions for grating in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Grate \Grate\, v. t. [imp. & p. p. Grated ; p. pr. & vb. n. Grating .] To furnish with grates; to protect with a grating or crossbars; as, to grate a window.
Longman Dictionary of Contemporary English
Word definitions in Longman Dictionary of Contemporary English
I. noun EXAMPLES FROM CORPUS ▪ A grating is a set of tight and dark stripes, usually of equal width. ▪ A spectrograph uses optical elements called gratings or prisms to separate the light gathered by a telescope into its component colors. ▪ Gullies often ...
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
"annoying, irritating," 1560s, figurative use of present participle adjective from grate (v.).
Usage examples of grating.
She leaned forward, caught at a backstay, and snatched her legs from the water in a final spasm of terror before swivelling round and rolling over on to the cockpit grating deck.
When he looked at Beaumont again he saw that he was standing very stiff and straight on the gratings.
I only went to the parlour of the lazaretto, where, placed behind a grating, you can speak to any person who calls, and who must stand behind another grating placed opposite, at a distance of six feet.
They would have to squat or lie on the grating and lean downward to nail the cleats across the canvas.
The timbre of his voice was harsh and grating, yet it was a very interesting, even a seductive, voice, and, Domini thought, peculiarly full of vivid life, though not of energy.
The sense of loneliness and peace was profound, and as the rare windows of the houses, minute and protected by heavy gratings, were dark, it had seemed to Domini at first as if all the inhabitants were in bed and asleep.
Darwin speaks of the hissing of certain snakes, the rattle of the rattle-snake, the grating of the scales of the echis, each of which serves to frighten or terrify the enemy.
Working together, with hands extended through the grating, Theseus and Daedalus turned the log endwise and pulled it through, a process delayed by the necessity of hacking off one more branch.
It was a resonating, loud, grating voice, obviously from someone with an im-m ense chest, and something told Wind Made by Wings, even while his whole body and soul were concentrated in combat, that this -was the voice of the Alengwyneh king himself.
Sacro Monte the tableaux are produced in perpetuity, only the figures are not living, they are terra-cotta statues painted and moulded in so life-like a way that you feel that, were a man of flesh and blood to get mixed up with the crowd behind the grating, you would have hard work to distinguish him from the figures that have never had life.
We were shewn into a small parlour, and a few minutes afterwards a nun came in, went straight to the grating, touched a spring, and made four squares of the grating revolve, which left an opening sufficiently large to enable the two friends to embrace the ingenious window was afterwards carefully closed.
I was certain that my two friends would be behind the grating, and that it would afford me the pleasant opportunity of seeing them together and of comparing them.
After I had examined the Pantaloons, Punches, Harlequins, and Merry Andrews, I went near the grating, where I saw all the nuns and boarders, some seated, some standing, and, without appearing to, notice any of them in particular, I remarked my two friends together, and very intent upon the dancers.
Dried, ground ginger is no substitute, and for this reason I have long kept a gingerroot in a zipper-lock bag in my freezer, ever-ready for grating or mincing.
Arthur saw Ichabod slide past, till the Denizen managed to grab hold of a grating.