Japanese word

波長

Pronunciation

Romajihachō

Meaning

  • nounwavelength

Example

赤い光は波長が長いです。aka i hikari wa ha chō ga naga i de su

Red light has a long wavelength.

Illustration for 波長 (wavelength)

More examples

光の色は波長によって変わります。hikari no iro wa ha chō ni yo tte ka wa ri ma su

The color of light changes depending on its wavelength.

Core concept

Measures the space from one matching point on a wave to the next, such as from one crest to the next.

Common phrases

  • 波長の長い光ha chō no naga i hikari

    light with a long wavelength

  • 波長の短い光ha chō no mijika i hikari

    light with a short wavelength

  • 波長の範囲ha chō no han i

    wavelength range

Definition in Japanese

波の山から次の山までなど、波の形が一度繰り返す間の長さ。nami no yama ka ra tsugi no yama ma de na do nami no katachi ga ichi do ku ri kae su aida no naga sa

Word origin

波長 (hachō) combines the on-yomi readings 波 (ha, "wave") and 長 (chō, "length") to describe the length of a wave's repeating pattern.

Usage tips

  • In physics, different wavelengths of visible light correspond to different colors, which is why a rainbow separates light into colors.

Word lists with this word