Kanji

蛍

lightning-bug, firefly

Kanji

Grade

Grade 8

Strokes

11 strokes

Radical

虫部

On'yomi (Chinese Reading)

ケイ

Kun'yomi (Japanese Reading)

ほたる

Common Readings

ケイ, ほたる

Example sentences

ほたる
夏の夜、川沿いで蛍が綺麗に光っている。

On a summer night, fireflies are glowing beautifully along the river.

蛍光灯 けいこうとう
この部屋の蛍光灯は明るい。

The fluorescent light in this room is bright.

蛍光 けいこう
この物質は紫外線を当てると緑色の蛍光を発する。

This substance emits green fluorescence when exposed to ultraviolet rays.

蛍石 ほたるいし
蛍石は、紫外線を照射すると蛍光を発する鉱物です。

Fluorite is a mineral that emits fluorescence when irradiated with ultraviolet light.

Example Vocabulary

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