|physics a type of neutrino associated with tau particles|
|a chattering or flighty, light-headed person.|
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|tau neutrino (tou, tô) Pronunciation Key
A type of neutrino associated with the tau particle, often created in particle interactions involving tau particles (such as the decay of these particles). The tau neutrino has a mass of zero or near zero, and has no electric charge. See more at neutrino. See Table at subatomic particle.