noun
black light; UV light
Refers to a lamp that emits ultraviolet light, often used to make fluorescent materials glow. Common in entertainment, forensics, and counterfeit detection.
ブラックライトを当てると、偽札の透かしが浮かび上がる。
When you shine a black light on it, the watermark on the counterfeit bill becomes visible.
クラブの壁にブラックライトで光るペンキが塗ってある。
The club walls are painted with paint that glows under black light.