| 单词 | diffraction |
| 释义 | diffraction (once / 41472 pages) n Diffraction is the process of light bending around an obstacle or spreading out after it moves through a small space. If you study physics, you'll learn about the diffraction of light waves. Any kind of wave can experience diffraction, including sound, radio, and water. It's most common to hear about the diffraction of light, which can be seen in the reflection of an image through a pinhole camera or the bright ring of light around the sun or the moon. The root of diffraction is the Latin word diffringere, "break into pieces," from dis, "apart," and frangere, "to break." WORD FAMILYdiffraction: diffractions+/diffract: diffracted, diffracting, diffraction USAGE EXAMPLESThe bird's wing acts as a diffraction grating - a surface structure with a repeating pattern of ridges or slits. BBC(Nov 28, 2016) These systems should use imaging methods8 based on diffraction signals. Nature(Nov 21, 2016) The researchers took a sample of the substance and analyzed it using X-ray diffraction. The Guardian(Aug 31, 2016) n when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands Hypo|Hyper X-ray diffraction the scattering of X rays by the atoms of a crystal; the diffraction pattern shows structure of the crystal optical phenomenon a physical phenomenon related to or involving light |
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