Definition

Extremely small or thin in size or texture, often used to describe particles or materials that are finer than usual.

Example

The ultrafine particles can easily penetrate the lungs and enter the bloodstream.

Conversation

Have you tried that new face powder that has ultrafine particles?

No, I haven't! Does it really make a difference?

Yeah, it feels super smooth and blends really well.

Sounds great! I might give it a shot next time.

Synonyms & Antonyms

Root Explanation

Ultrafine → It is formed from "ultra-" (meaning beyond or extreme) and "fine" (from Latin "finis", meaning end or limit). The word "ultrafine" describes something that is extremely fine or has a very small particle size, going beyond the usual fineness.

Memory Tip

Think of something that is 'beyond' ('ultra-') what is considered 'fine' — that's why ultrafine refers to something extremely fine.

Visually Confused Words