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A type of cargo bike that has one wheel in front and two in back.
(electrical, often attributive) The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.
delta winding; delta connection; delta current
(US,military, U.S. Space Force) A military unit, nominally headed by a colonel, equivalent to a USAF operations wing, or an army regiment.
(astronomy) a star that is usually the fourth brightest of a constellation.
(physics) one of four baryons consisting of up and down quarks with a combined spin of 3/2: Δ++ (uuu), Δ+ (uud), Δ0 (udd), or Δ− (ddd)
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
delta (third-person singular simple presentdeltas, present participledeltaing, simple past and past participledeltaed)
(cryptography) To calculate the differences between the characters in an enciphered text and the characters a fixed number of positions previous.
2007, B. J. Copeland, “Tunny and Colossus: Breaking the Lorenz Schlüsselzusatz traffic”, in Karl de Leeuw, Jan Bergstra, editors, The History of Information Security: A Comprehensive Handbook, Amsterdam: Elsevier, →ISBN, page 458:
Turingery worked on deltaed key to produce the deltaed contribution of the chi-wheels. Turing's discovery that delta-ing would reveal information otherwise hidden was essential to the developments that followed.
(computing) To compare two versions of the same file in order to determine where they differ (where a programmer has made edits).
1992, Israel Silverberg, Source File Management With SCCS, Englewood Cliffs, NJ: Prentice Hall, →ISBN, page 166:
The primary function of this command is to delta the product version file (if it has been retrieved for edit). However, prior to deltaing the product version file, the work source tree is searched to verify that no other source files are still waiting to be deltaed.
↑ 1.01.1Rejzek, Jiří (2015), “delta”, in Český etymologický slovník [Czech Etymological Dictionary] (in Czech), 3rd (revised and expanded) edition, Praha: LEDA, →ISBN, page 137
Further reading
delta in Příruční slovník jazyka českého, 1935–1957
delta in Slovník spisovného jazyka českého, 1960–1971, 1989
delta in Bárczi, Géza and László Országh. A magyar nyelv értelmező szótára (‘The Explanatory Dictionary of the Hungarian Language’, abbr.: ÉrtSz.). Budapest: Akadémiai Kiadó, 1959–1962. Fifth ed., 1992: →ISBN
delta in Ittzés, Nóra (ed.). A magyar nyelv nagyszótára (‘A Comprehensive Dictionary of the Hungarian Language’). Budapest: Akadémiai Kiadó, 2006–2031 (work in progress; published A–ez as of 2024)