noun
- the dense, soft layer of fur beneath the outer coat of certain mammals that provides insulation
Examples
- The arctic fox’s thick underfur keeps it warm in freezing temperatures.
- Grooming tools help remove loose underfur during shedding season.
- The dog’s underfur becomes thicker as winter approaches.
- Polar bears have dense underfur covered by longer guard hairs.
- Regular brushing prevents the underfur from matting.
- The cat’s underfur provides excellent insulation against cold weather.