蛍光灯 けいこうとう fluorescent lamp N2 #9,287 Meanings noun fluorescent lamp; fluorescent light dated person who is slow to react; someone slow on the uptake Its kanji 蛍 ケイ · ほたる lightning-bug, firefly 光 コウ · ひか.る、ひかり ray, light 灯 トウ · ひ、ほ-、ともしび、とも.す、あかり lamp, a light, light, counter for lights In sentences Furigana ハリーは本当ほんとうに蛍光灯けいこうとうだね。 Harry's really slow to catch on. #74557