こうそく
Meanings
Noun
1. 光が伝わる速さ。真空中で毎秒 299,792,458メートル。記号c。
Pitch accent
うそく
Used in vocabulary (4 in total)
faster-than-light speed; super luminal speed
near light speed; sublight speed
① 光が伝わる速さ。光速。