Definition

Describing a process or state that does not involve the emission or transfer of energy in the form of radiation.

Example

The radiationless transition allows the molecule to change energy states without losing energy as radiation.

Conversation

Did you hear about that new radiationless technology they're developing?

Yeah, I read it can really change the way we use energy.

It's amazing how much safer it could be for everyone.

Absolutely! I hope it becomes widely available soon.

Synonyms & Antonyms

Root Explanation

Radiationless → It is formed from "radiation" (from Latin *radiatio*, meaning a sending out or spreading out) and "-less" (meaning without). The word "radiationless" means without radiation or the emission of energy in the form of waves or particles.

Memory Tip

Think of being 'without' ('-less') the 'sending out' ('radiation') of energy — that's what radiationless means.

Visually Confused Words