回かい折せつ

noun, noun or participle which takes 'suru', intransitive verb

diffraction

Physics term for the bending and spreading of waves around obstacles or through openings. Used as both a noun and a suru-verb.

• 光ひかりが狭せまい隙すき間まを通とおると回かい折せつが起おこる。

  Diffraction occurs when light passes through a narrow slit.

• X線せん回かい折せつを使つかって結けっ