Found 2 items, similar to tau.
English → English (WordNet) Definition: tau tau n : the 19th letter of the Greek alphabet
English → English (gcide) Definition: Tau Tau \Tau\ (tou), n. [Gr. tay^.] The nineteenth letter ([Tau], [tau]) of the Greek alphabet, equivalent to English t. [Webster 1913 Suppl.] Tau \Tau\, n. [Gr. tay^ the letter [tau] (English T).] (Zo["o]l.) The common American toadfish; -- so called from a marking resembling the Greek letter tau ([tau]). [1913 Webster] Tau cross. See Illust. 6, of Cross. [1913 Webster]