Meaning of 螢光 in Japanese

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Definition of 螢光

けいこう(keikou) 【蛍光 ·螢光】

けいこうとう(keikoutou) 【蛍光灯 ·蛍光燈 ·螢光灯 ·螢光燈】

(n) fluorescent lamp; fluorescent light
蛍光灯がチカチカしてるな。新しいのと交換しないとダメかな。
This fluorescent lamp is starting to flicker. We'll have to replace it.
person who is slow to react; someone slow on the uptake
ハリーは本当に蛍光灯だね。
Harry's really slow to catch on.

けいこうペン(keikoupen) 【蛍光ペン ·螢光ペン】