  Applying the phenomenon of neutrino lasing in the solar interior, we show how
the rate for the generic neutrino decay process `\nu -> fermion + boson', can
in principal be enhanced by many orders of magnitude over its normal decay
rate. Such a large enhancement could be of import to neutrino-decay models
invoked in response to the apparent deficit of electron neutrinos observed from
the sun. The significance of this result to such models depends on the specific
form of the neutrino decay, and the particle model within which it is embedded.
