noun
flash of light; glint
A sudden, brief burst of light, often used in contexts like lightning, photography, or reflections.
カメラの閃光がまぶしかった。
The camera flash was dazzling.
稲妻の閃光が一瞬、空を照らした。
A flash of lightning lit up the sky for an instant.
noun
schiller
Geological term for a metallic or iridescent luster seen in certain minerals.
この鉱物は閃光を放つ。
This mineral exhibits schiller.
Compound of 閃 (sen, 'flash') and 光 (kō, 'light'). The kanji 閃 is composed of 門 (gate) and 人 (person), suggesting a person glimpsed through a gate, hence a fleeting appearance.