What's the difference between grating and prating?

Grating

Definition:

(p. pr. &. vb. n.) of Grate
(n.) A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent.
(n.) 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.
(n.) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats.
(a.) That grates; making a harsh sound; harsh.
(n.) A harsh sound caused by attrition.

Example Sentences:

(1) Vertical gratings are tinged with green and horizontal gratings with pink.
(2) It is a moment to be grateful for what remains of Labour's hard left: an amendment to scrap the cap was at least tabled by John McDonnell and Jeremy Corbyn but stood no chance.
(3) The use of a new ultraviolet laser combined with a holographic grating spectrograph promises to increase the number of fluorescing species that can be detected simultaneously.
(4) Experiment 4 measured curvature selectivity as a function of the orientation of a curved adapting grating.
(5) The ARCT for the 15.0 c deg-1 grating was significantly higher than for the other two gratings.
(6) I personally felt grateful that British TV set itself apart from its international rivals in this way, not afraid to challenge, to stretch the mind and imagination.
(7) Gerson Zweifach, general counsel for both News Corp and 21st Century Fox , Murdoch’s film and TV business, said: “We are grateful that this matter has been concluded and acknowledge the fairness and professionalism of the Department of Justice throughout this investigation.” It is understood there has been no background settlement with the Department of Justice in order to avoid a full-blown investigation, contrary to speculation in New York over a year ago that the company was looking at a possible payment of over $850m.
(8) We should be grateful the School Food Trust has established this now, before we end up falling down a slippery slope back towards the dreaded Turkey Twizzler that Jamie Oliver campaigned to banish," he added.
(9) Dissociated culture of adult mouse dorsal root ganglion cells on glass plates, on which grating-associated microstructures (a repetition of microgrooves [mGRV] and microsteps [mSTP] of 0.1-10 micron) are fabricated by the conventional lithographic techniques, represents a remarkable bi-directional growth of their nerve fibers in the axial direction of the grating.
(10) This leads to the prediction that reaction time to grating onset will be linearly related to the square of the grating frequency.
(11) Accommodation measurements of nine young, emmetropic subjects were obtained with an infrared optometer while they viewed superimposed horizontal and vertical square-wave gratings at various dioptric separations.
(12) The effect of contrast on the range of temporal frequencies over which direction of movement can be discriminated differs for the three types of pattern: beats resemble neither low nor high spatial frequency gratings.
(13) Even before she gets to the Timeless premiere, the Mail Online has run two news stories on her that day: the first detailing what she was wearing in the morning, the second furnishing a grateful world with the news that she'd subsequently changed her outfit and taken her sunglasses off.
(14) However, similarly tested Keplerian telescopes exhibited significantly higher MTF's with vertical gratings.
(15) Acuity for the direction of drift for these stimuli is of the same order of precision as orientation acuity for static or drifting gratings, and exhibits a meridional anisotropy that favours the principal meridians.
(16) AJ Green was waiting just behind him, and the receiver gratefully pulled in the softly fluttering ball.
(17) We tentatively suggest that a preferential loss of contrast sensitivity to horizontal gratings might be due to a functional abnormality in the striate cortex that relatively spares the extrastriate cortex.
(18) A breathless Sturridge was still trying to digest his part in the game when he paid tribute to Hodgson, saying: “I’m grateful to the gaffer for allowing me to score and it’s a beautiful feeling to represent your country in the rivalry against another great country.
(19) A technique for rapid behavioral screening of grating acuity in infants 1 to 4 months of age is described.
(20) "We are enormously grateful that the Komen Foundation has clarified its grantmaking criteria, and we look forward to continuing our partnership with Komen partners, leaders and volunteers.