fluorescent

Everyday

1. Very bright and seeming to glow, especially colours like bright yellow, orange or green. tree →
2. Giving out bright light when energy such as ultraviolet light shines on it. tree →
3. A fluorescent light is a long glass tube light. tree →

In the lessons

In safety lessons, fluorescent vests and armbands help drivers see walkers and cyclists, especially in poor light. In science, some minerals, animals and inks glow under ultraviolet light. In schools, many rooms have fluorescent lights. Phrases: fluorescent jacket, fluorescent colours, fluorescent light, fluorescent tube.

Examples

• Wear a fluorescent vest when you cycle. tree →
• The highlighter is fluorescent yellow. tree →
• Road workers wear fluorescent jackets. tree →
• The rock glowed under the UV light because it is fluorescent. tree →
• Our classroom has fluorescent lights. tree →
• Fluorescent armbands help drivers see you. tree →

Note

Spelling trap: f-l-u-o-r-e-s-c-e-n-t — "uo" not "ou", and "sc". Fluorescent things are bright in daylight; at night you also need reflective strips, which shine back car headlights. "Glow-in-the-dark" toys are different: they keep glowing after the light goes off.