Definition

Describing a substance that does not mix with water or repels it.

Example

The hydrophobic coating on the fabric keeps it dry in the rain.

Conversation

Did you know that some materials are hydrophobic?

Really? I didn't know that meant they repel water.

Yeah, it’s pretty cool how they don’t mix with liquids at all.

That must be useful for making waterproof products!

Synonyms & Antonyms

Root Explanation

Hydrophobic is formed from "hydro-" (from Greek "hydor", meaning water) and "phobos" (meaning fear). The word describes a substance that has a fear or aversion to water, hence it does not mix well with it.

Memory Tip

Think of 'water' ('hydro-') and 'fear' ('phobos') to remember that hydrophobic means having a fear or aversion to water.

Visually Confused Words