tau
Concise Oxford English Dictionary © 2008 Oxford University Press:
tau /tɔː, taʊ/
▶noun
- 1 the nineteenth letter of the Greek alphabet (Τ, τ), transliterated as ‘t’.
- 2 (also tau particle) Physics an unstable lepton with a charge of −1 and a mass roughly 3,500 times that of the electron.
– origin from Gk.
'tau' also found in these Oxford entries:
