  An operad structure on certain bicoloured noncrossing configurations in
regular polygons is studied. Motivated by this study, a general functorial
construction of enveloping operad, with input a coloured operad and output an
operad, is presented. The operad of noncrossing configurations is shown to be
the enveloping operad of a coloured operad of bubbles. Several suboperads are
also investigated, and described by generators and relations.

Combinatorics;Quantum Algebra