felting

Short definition from Wiktionary

Verb

1. 1
   present participle and gerund of felt

Noun

1. 1
   The production of felt from wool.
2. 2
   The tangling of woolen fibres (such as when an article of clothing is washed at too high a temperature)
3. 3
   The hobby of making objects, such as soft toys, from felt.
4. 4
   Felt or similar material, usually impregnated with a water-resistant material, or the application of such material, usually to a roof.