過か剰じょう虹にじ

noun

supernumerary rainbow

A faint, extra set of rainbow bands inside the primary bow, caused by diffraction of light by small water droplets. Technical term in meteorology.

• 過か剰じょう虹にじは、主しゅ虹にじの内うち側がわに見みられる淡あわい色いろの帯おびです。

  A supernumerary rainbow is a faint band of colors seen inside the primary rainbow.