Definition of tau Tau

tau

We found 11 definitions of tau from 7 different sources.

What does tau mean?

WordNet

Noun

Plural: taus

tau - the 19th letter of the Greek alphabet

alphabetic character, letter of the alphabet, letter a written message addressed to a person or organization; "mailed an indignant letter to the editor"

= synonym
= antonym
= related word

Wiktionary

tau (Noun)
The name of the letter T/ τ in the Greek, Hebrew and ancient Semitic alphabets, being the nineteenth letter of the Classical Classical and Modern Greek , the twentieth letter of Old Old and Ancient Ancient Greek.
tau (Noun)
A -shaped sign or structure; a St. Anthony's cross , sometimes considered as a sacred symbol.
tau (Noun)
A tau meson , now usually known as a kaon.
tau (Noun)
An unstable heavy lepton, which decays into a muon or electron; a tauon.
tau (Noun)
A type of protein used to stabilise microtubules.

Webster DictionaryWebster's Unabridged Dictionary 📘

tau (n.)
The common American toadfish; -- so called from a marking resembling the Greek letter tau (/).

OmegaWiki DictionaryOmegaWiki Dictionary Ω

tau
The 19th letter of the Greek alphabet (Τ τ).

Chambers DictionaryChamber's 20th Century Dictionary 📕

tau
taw, n. the toad-fish: a tau-cross.—ns. Tau′-bone, a Τ-shaped bone, as the interclavicle of a monotreme; Tau′-cross, a cross in the form of a Τ—also Cross-tau and Cross of St Anthony; Tau′-staff, a staff with a cross-piece at the top like a crutch.—adj. Tau′-topped, having a handle like a tau-cross. [See T.]

Wikipedia

letter
Tau (uppercase/lowercase Τ τ), is the letter of the Greek alphabet, used to represent the "t" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 300. Letters that came from it include the Roman T and Cyrillic Т.

Part of speech

🔤

tau, noun, singular of taus.

Pronunciation

Word frequency

Tau is...

Very rare

Rare

Normal

Common

Very Common