英和和英

語源

From photo- +‎ -on. Coined by American physicist Leonard Troland in 1916 as a unit of light hitting the retina, and later popularized in a more modern sense by Gilbert N. Lewis, with the term gaining acceptance in the physics community by the late 1920s.

発音

• IPA: /ˈfəʊtɒn/
• 韻: -əʊtɒn

名詞

photon (plural photons)

1. (physics) The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson.
   • 2013 July-August, Fenella Saunders, “Tiny Lenses See the Big Picture”, in American Scientist:

     The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity. They also have high spatial resolution, resolving incoming images in minute detail.

派生語

参考

• phonon
• plasmon

アナグラム

• Hopton, notoph