Definition of grating
1 : a wooden or metal lattice used to close or floor an opening
2 : a partition, covering, or frame of parallel bars or crossbars
3 : a system of close equidistant and parallel lines or bars ruled on a polished surface to produce spectra by diffraction
Recent Examples of grating from the Web
And even the non-pejorative words can get a little grating: Homosexual, anyone?
The CD acts as a diffraction grating, which spreads the laser light out across all its wavelengths.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'grating'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of grating
GRATING Defined for English Language Learners
Definition of grating for English Language Learners
: a frame with bars across it that is used to cover an opening
GRATING Defined for Kids
Definition of grating for Students
: 2grate 1
Medical Definition of grating
: a system of close equidistant and parallel lines or bars ruled on a polished surface to produce spectra by diffraction—called also diffraction grating
Seen and Heard
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