Definition

To cause an atom or molecule to lose an electron due to exposure to light or electromagnetic radiation.

Example

The intense light from the laser can photoionize the gas, creating charged particles.

Tense Forms

Conversation

Did you know that certain light can photoionize atoms?

Really? I had no idea light could do that.

Yeah, it’s fascinating how electromagnetic radiation works.

Science is so cool; I love learning about these things!

Synonyms & Antonyms

Root Explanation

Photoionize → It is formed from "photo-" (from Greek "phōs", meaning light) and "ionize" (from Greek "ion", meaning to go or to wander, and the suffix "-ize", meaning to make or to cause). The word describes the process of making ions by using light.

Memory Tip

Think of 'light' ('photo-') causing something to 'wander' or become charged ('ionize'). This helps you remember that 'photoionize' means to create ions using light.

Visually Confused Words