DICTIONARY ENTRY
4 SYLLABLES
diffraction grating
/dɪ'frækʃən_'greɪtɪŋ/ · dɪfrækʃəngreɪtɪŋ
Diffraction grating has 4 syllables: dif · frac · tion grat · ing.
dif
01
frac
02
tion grat
03
ing
04
noun. Optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum.
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