Definition

To emit light when exposed to radiation, especially ultraviolet light.

Example

The minerals in the rock fluoresce under UV light, creating a beautiful glow.

Conversation

Have you seen how some rocks fluoresce under UV light?

Yeah, it's really cool! I didn't know they could do that.

I was surprised by how brightly they fluoresce in the dark.

Me too! Nature has some amazing tricks up its sleeve.

Synonyms & Antonyms

Root Explanation

Fluoresce → It is formed from "fluere" (meaning to flow) and the suffix "-esce" (indicating a process of becoming). The word describes the process of becoming luminous or glowing, particularly under ultraviolet light, as if light is flowing from the substance.

Memory Tip

Think of something 'flowing' ('fluere') with light as it 'becomes' luminous ('-esce'). This helps you remember that fluoresce means to emit light.

Visually Confused Words