Result from Foreign Dictionaries (2 entries found)
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Diffraction \Dif*frac"tion\, n. [Cf. F. diffraction.] (Opt.)
The deflection and decomposition of light in passing by the
edges of opaque bodies or through narrow slits, causing the
appearance of parallel bands or fringes of prismatic colors,
as by the action of a grating of fine lines or bars.
[1913 Webster]
Remarked by Grimaldi (1665), and referred by him to a
property of light which he called diffraction.
--Whewell.
[1913 Webster]
{Diffraction grating}. (Optics) See under {Grating}.
{Diffraction spectrum}. (Optics) See under {Spectrum}.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
diffraction
n 1: when light passes sharp edges or goes through narrow slits
the rays are deflected and produce fringes of light and
dark bands
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เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
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