We propose a scheme in which a pseudo-Dirac structure for three family of
light neutrinos is generated naturally. An extended Higgs sector with a majoron
is used for the generation of the leptonic number violating neutrino Majorana
mass. The resultant neutrino mass matrix could easily fit all available
experimental data. We discuss relevant constraints on the scales involved for
the model to be phenomenologically viable.Comment: 12 pages Revtex, no figure; minor extension in discussions; version
to appear in Phys. Lett.
