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The following 2 entries include the term bose-einstein.
Bose-Einstein condensate
noun: a state of matter that occurs when a set of atoms is cooled almost to absolute zero in which a statistical description of the positions of the atoms implies that they physically overlap each other and in effect form a single atom
Bose-Einstein statistics
noun plural but singular or plural in construction: quantum-mechanical statistics according to which subatomic particles of a given class (such as photons and pi-mesons) have a quantum-mechanical symmetry that in cases of thermal equilibrium tends to cause an accumulation of many particles of the same kind in each of the possible low-energy quantum-mechanical states compare fermi-dirac statistics