| け | い | 
|---|---|
| 蛍 | 
| こ | う | 
|---|---|
| 光 | 
| と | う | 
|---|---|
| 灯 | 
noun
- fluorescent lamp, fluorescent light.
- person who is slow to react, someone slow on the uptake. Messages.dated.
Variations
| Pronunciation | Kanji | Kana | Is Common | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
 
 
 | 蛍光灯 | けいこうとう | ✔ | |||||||||||
| 
 
 
 | 蛍光燈 | けいこうとう | ||||||||||||
| 
 
 
 | 螢光灯 | けいこうとう | ||||||||||||
| 
 
 
 | 螢光燈 | けいこうとう | ||||||||||||
| 
 
 
 
 | けい光灯 | けいこうとう | ||||||||||||
| 
 
 
 
 
 | けいこう灯 | けいこうとう | 
Contained Kanji Breakdown
lightning-bug, firefly
ほたる ケイ (9th, N1)
ray, light
ひかり コウ ひか.る (2nd, N3)