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We interpret the combinatorial Mandelbrot set in terms of \it{quadraticlaminations} (equivalence relations $\sim$ on the unit circle invariant under$\sigma_2$). To each lamination we associate a particular {\em geolamination}(the collection $\mathcal{L}_\sim$ of points of the circle and edges of convexhulls of $\sim$-equivalence classes) so that the closure of the set of all ofthem is a compact metric space with the Hausdorff metric. Two suchgeolaminations are said to be {\em minor equivalent} if their {\em minors}(images of their longest chords) intersect. We show that the correspondingquotient space of this topological space is homeomorphic to the boundary of thecombinatorial Mandelbrot set. To each equivalence class of these geolaminationswe associate a unique lamination and its topological polynomial so that thisinterpretation can be viewed as a way to endow the space of all quadratictopological polynomials with a suitable topology.

The combinatorial Mandelbrot set as the quotient of the space of geolaminations