grating
US /ˈɡreɪ.t̬ɪŋ/
UK /ˈɡreɪ.t̬ɪŋ/

1.
grille, treillis
a framework of parallel or crossed bars, typically found over a drain or covering a window or opening.
:
•
The old iron grating covered the storm drain.
La vieille grille en fer recouvrait le drain pluvial.
•
He peered through the narrow grating into the cellar.
Il jeta un coup d'œil à travers la grille étroite dans la cave.
1.
strident, désagréable
sounding harsh and unpleasant; irritating.
:
•
The constant squeaking of the old door was quite grating.
Le grincement constant de la vieille porte était assez désagréable.
•
His high-pitched voice had a grating quality.
Sa voix aiguë avait une qualité stridente.