neutron drip

neutron drip

[′nü‚trän ‚drip]
(astrophysics)
The rapid increase in the abundance of free neutrons that occurs when matter becomes sufficiently dense that electrons are absorbed into nuclei.
References in periodicals archive ?
The "neutron drip" boundary is the density at which no more neutrons can be added to nuclei; the few nuclei that exist at the neutron drip density have 20 to 40 times more neutrons than protons and sit in a vast sea of free neutrons.
Away from this valley is a frontier, called the neutron drip line, at which no more neutrons can be added without loss of nuclear binding.