tau

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tau

 (tou, tô)
n.
The 19th letter of the Greek alphabet. See Table at alphabet.

[Greek, of Phoenician origin; see tww in Semitic roots.]

tau

(tɔː; taʊ)
n
(Letters of the Alphabet (Foreign)) the 19th letter in the Greek alphabet (Τ, τ), a consonant, transliterated as t
[C13: via Latin from Greek, of Semitic origin; see tav]

tau

(taʊ, tɔ)

n., pl. taus.
the 19th letter of the Greek alphabet (T, τ).
[1250–1300; Middle English < Latin < Greek taû < Semitic; compare tav]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tau - the 19th letter of the Greek alphabettau - the 19th letter of the Greek alphabet
Greek alphabet - the alphabet used by ancient Greeks
alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"
Translations
References in periodicals archive ?
The researchers analyzed the data gathered at the LHC between 2011 and 2012, combining the Higgs decays into bottom quarks and tau leptons, both of which belong to the fermion particle group and the results revealed that an accumulation of these decays comes about at a Higgs particle mass near 125 gigaelectron volts (GeV) and with a significance of 3.