cottonwool

/K AA1 T AH0 N W UH1 L/
noun
  1. 1

    Raw fibers of cotton before being processed.

  2. 2

    Soft, absorbent cotton for medical or cosmetic use, protective padding, etc.

Source: https://en.wiktionary.org/wiki/cotton%20wool, https://en.wiktionary.org/wiki/cottonwool