
1) Greek letter
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https://www.crosswordclues.com/clue/tau

1) African boy name 2) After sigma 3) Alphabetic character 4) Ancient cross 5) Ancient cross shape 6) Ancient symbol of life 7) Arithmetic series symbol 8) Athenian cross 9) Athenian t 10) Attic T 11) Before upsilon 12) Bottled water brand 13) Calculus symbol 14) Capital of Tartarus 15) Capital of Troy
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https://www.crosswordclues.com/clue/tau

Tau (uppercase Τ, lowercase τ; ταυ taf) is the 19th letter of the Greek alphabet. In the system of Greek numerals it has a value of 300. The name in English is pronounced aʊ, but in modern Greek it is taf. This is because the pronunciation of the combination of Greek letters αυ has changed from ancient to modern times from one of [au] to e...
Found on
http://en.wikipedia.org/wiki/Tau
[1/3] Many of Smith`s sculptures were made up of a space lattice: groupings of simple platonic solids, in Tau`s case two such solids, octahedrons and tetrahedrons. The original model for the sculpture was created by Smith in 1961-62 using his signature process of joining small cardboard tetrahedrons, a process he began while recuperating af...
Found on
http://en.wikipedia.org/wiki/Tau_(1/3)
[Warhammer 40,000] In the fictional setting of Warhammer 40,000, the Tau are a race and a playable army in the tabletop miniatures wargame. The Tau rule a small interstellar empire on the very fringe of Imperium space. They are a relatively new power on the galactic scene. The Tau dream of uniting the races of the galaxy under their benevol...
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http://en.wikipedia.org/wiki/Tau_(Warhammer_40,000)
[mythology] Tau is the name of an evil spirit in Guaraní mythology. Although Tau is not quite synonymous with the Devil in Christian beliefs, for example, he was sometimes referred to as The Evil Spirit and as such may have been a personification of evil itself. Tau was created along with his opposite, Angatupyry, by the supreme god of the...
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http://en.wikipedia.org/wiki/Tau_(mythology)
[particle] Tau leptons have a lifetime of {val|2.9|e=-13|u=s} and a mass of {val|1776.82|u=MeV/c2} (compared to {val|105.7|u=MeV/c2} for muons and {val|0.511|u=MeV/c2} for electrons). Since their interactions are very similar to those of the electron, a tau can be thought of as a much heavier version of the electron. Because of their greate...
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http://en.wikipedia.org/wiki/Tau_(particle)
[sculpture] American sculptor Tony Smith designed ``Tau”` in the early 1960s. It is 14’ high x 12’ wide x 12’ deep, and made from black painted steel. Its title refers to the Greek letter `T`, which also describes the shape of the sculpture. Fascinated by mathematics, biology and crystals, Smith designed Tau with geometry at its roo...
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http://en.wikipedia.org/wiki/Tau_(sculpture)
[water] Tau is a British brand of still and sparkling bottled water. Tau went on sale in 2003, and is available in 750ml (25 fl oz) or 330ml (11 fl oz) bottles. It is sold by the company which produces Tŷ Nant mineral water, who drilled a new borehole into their spring in Llanon, Wales, from which to draw water for their Tau range. Sales f...
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http://en.wikipedia.org/wiki/Tau_(water)

• (n.) The nineteenth letter (/, /) of the Greek alphabet, equivalent to English t. • (n.) The common American toadfish; -- so called from a marking resembling the Greek letter tau (/).
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http://thinkexist.com/dictionary/meaning/tau/

(from the article `Manua Islands`) group of three islands (Tau [Ta`u], Ofu, and Olosega), American Samoa, southwestern Pacific Ocean. Tau, the chief island, has an area of about 15 ...
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http://www.britannica.com/eb/a-z/t/16

elementary subatomic particle similar to the electron but approximately 3,500 times heavier. Like the electron and the muon, the tau is an ... [4 related articles]
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http://www.britannica.com/eb/a-z/t/16
(Thousand Astronomical Unit mission) Diagram of one possible configuration of TAU An interstellar precursor mission concept, studied by JPL scientists in the late 1980s, with the potential for enabling an unmanned probe to reach a distance of 1,000 astronomical uni...
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http://www.daviddarling.info/encyclopedia/T/TAU.html

<radiobiology> Label generally used to represent confinement time ... (09 Oct 1997) ...
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http://www.encyclo.co.uk/local/20973

A protein in the body that aids in the cellular structure (cytoskeleton) and cellular transportation.
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http://www.encyclo.co.uk/local/22236
Tau (tou)
noun [ Greek
tay^ .] The nineteenth letter (&TAU;, τ) of the Greek alphabet, equivalent to English
t .
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http://www.encyclo.co.uk/webster/T/15
Tau noun [ Greek
tay^ the letter τ (English
T ).]
(Zoology) The common American toadfish; -- so called from a marking resembling the Greek letter
tau (τ).
Tau cross .
See Illust. 6, of Cross . Found on
http://www.encyclo.co.uk/webster/T/15
(τ) Type: Term Pronunciation: taw Definitions: 1. The 19th letter of the Greek alphabet. 2. Symbol for tele; relaxation time. 3. A protein that associates with microtubules and other elements of the cytoskeleton; tau accelerates tubulin polymerization and stabilizes microtubules; tau is also found in the plaque observed in patie...
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http://www.medilexicon.com/medicaldictionary.php?t=89764

In Guarani mythology, Tau is the spirit of evil.
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http://www.probertencyclopaedia.com/browse/DCT.HTM

In heraldry, the tau is a charge consisting of a form of cross in the shape of a T.
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http://www.probertencyclopaedia.com/browse/UT.HTM

Thousand Astronomical Unit, a spacecraft mission proposed in the 1980s that would reach 1000 AU in 50 years
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http://www.translationdirectory.com/glossaries/glossary142.htm

tau 1. The 19th letter of the Greek alphabet (T, τ). 2. The consonant sound represented by this letter.
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http://www.wordinfo.info/words/index/info/view_unit/2089/
noun the 19th letter of the Greek alphabet
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https://www.encyclo.co.uk/local/20974

Elementary particle with the same electric charge as the electron but a mass nearly double that of a proton. It has a lifetime of around 3 × 10
-13 seconds and belongs to the lepton family of particles – those which interact via the electromagnetic, weak nuclear, and gravitational forces, but not the strong nucle...
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https://www.encyclo.co.uk/local/21221

The heaviest known lepton.
Found on
https://www.encyclo.co.uk/local/21322
No exact match found.