Korean edit

 
Korean Wikipedia has an article on:
Wikipedia ko

Etymology edit

Sino-Korean word from (light) + (second)

Pronunciation edit

Romanizations
Revised Romanization?gwangcho
Revised Romanization (translit.)?gwangcho
McCune–Reischauer?kwangch'o
Yale Romanization?kwangcho

Noun edit

광초 (gwangcho) (hanja 光秒)

  1. (astronomy) light second