- 1[countable] a small bunch of hair that forms a curved or round shape Her hair was a mass of curls. The baby had dark eyes and dark curls.
- 2[countable, uncountable] the tendency of hair to form curls His hair had a natural curl.
- 3[countable] a thing that forms a curved or round shape a curl of smoke Decorate the cake with curls of chocolate. a contemptuous curl of the lip (= an expression showing disapproval)