Definition

The soft and fine layer of fur found beneath the outer coat of some animals, providing insulation and warmth.

Example

The otter's underfur keeps it warm in cold water.

Conversation

I read that otters have a really thick underfur to keep them warm in cold water.

That’s interesting! I didn’t know they relied on that for insulation.

Yeah, I guess many mammals have their own special adaptations.

Exactly, it's amazing how nature works to protect them.

Synonyms & Antonyms

Root Explanation

Underfur → It is formed from "under" (from Old English "under", meaning beneath or below) and "fur" (from Old English "fǣr", meaning hair or coat of an animal). The word "underfur" refers to the layer of fur that lies beneath the outer coat of an animal, typically providing insulation.

Memory Tip

Think of the word 'under' meaning beneath, and 'fur' referring to the hair of an animal. This helps you remember that 'underfur' is the fur that lies beneath the outer layer.

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