delta
English[edit]
← gamma |
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→ epsilon |
Wikipedia article on delta |

Etymology[edit]
From Ancient Greek δέλτα (délta), ultimately from the Proto-Semitic word for door. Doublet of dalet.
- (river): from the triangular shape of the majuscule Greek letter delta Δ
- (USSF): from the delta wing, symbol of the USSF, a triangular wing, shaped like the majuscule Greek letter delta Δ
Pronunciation[edit]
Noun[edit]
delta (plural deltas)
- The fourth letter of the modern Greek alphabet Δ, δ.
- A landform at the mouth of a river where it empties into a body of water.
- (international standards) Alternative letter-case form of Delta from the NATO/ICAO Phonetic Alphabet.
- (mathematics) The symbol Δ.
- (computing, informal) A small but noticeable effect. Compare epsilon.
- This will slow the main code path down, but only by delta.
- (computing) The set of differences between two versions of a file.
- When you update the file, the system will only save the deltas.
- (physics, engineering) A change in a quantity, likely from "d" for "difference".
- ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)
- (surveying) The angle subtended at the center of a circular arc.
- 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
- (finance) The rate of change in an option value with respect to the underlying asset's price.
- (chemistry) A value in delta notation indicating the relative abundances of isotopes.
- (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)
- (medicine) Short for delta variant. (variant of the SARS-CoV-2 virus)
Synonyms[edit]
- (USSF): garrison (a support wing equivalent)
Hypernyms[edit]
- (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)
- (particle physics): baryon; resonance
Derived terms[edit]
- antidelta
- correlation delta
- delta blues
- delta cell
- delta connection
- Delta County
- delta decay
- delta female
- delta glider
- delta hinge
- delta iron
- deltal
- delta male
- delta metal
- delta particle
- delta ray
- delta-sigma converter
- delta strain
- deltate
- delta test
- delta-v
- delta variant
- delta wing
- Dirac delta
- Dirac delta function
- hepatitis delta virus
- Kronecker delta
- sigma-delta converter
- stimulus delta
Translations[edit]
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- The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
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See also[edit]
Verb[edit]
delta (third-person singular simple present deltas, present participle deltaing, simple past and past participle deltaed)
- (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.
Anagrams[edit]
Asturian[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Noun[edit]
delta f (plural deltes)
- delta (Greek letter)
Noun[edit]
delta m (plural deltes)
- delta (landform at the mouth of a river)
Catalan[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta f (plural deltes)
Derived terms[edit]
Czech[edit]
Δδ | Previous: | gama |
---|---|---|
Next: | epsilon |
Pronunciation[edit]
Etymology 1[edit]
From Ancient Greek δέλτα (délta), which is probably of Semitic origin.[1]
Noun[edit]
delta n (indeclinable)
- Delta (Greek letter Δ).
- (physics) Kind of rays consisting of secondary electrons with enough energy to escape a significant distance away from the primary radiation beam and produce further ionization (delta ray).
- Having the shape of the Greek letter Δ.
- delta křídlo ― delta wing
Derived terms[edit]
Etymology 2[edit]
From Ancient Greek δέλτα (délta). Originally used for the delta of the Nile, because its forked shape resembled the Greek letter Δ. The word is probably of Semitic origin.[1]
Noun[edit]
delta f
Declension[edit]
References[edit]
Further reading[edit]
- delta in Příruční slovník jazyka českého, 1935–1957
- delta in Slovník spisovného jazyka českého, 1960–1971, 1989
Anagrams[edit]
Danish[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Noun[edit]
delta n (singular definite deltaet, plural indefinite deltaer)
Declension[edit]
neuter gender |
Singular | Plural | ||
---|---|---|---|---|
indefinite | definite | indefinite | definite | |
nominative | delta | deltaet | deltaer | deltaerne |
genitive | deltas | deltaets | deltaers | deltaernes |
References[edit]
- “delta” in Den Danske Ordbog
Dutch[edit]
Etymology[edit]
Ultimately from Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta f (plural delta's, diminutive deltaatje n)
- The Greek letter delta.
- A river delta, a network of one or more rivers and tributaries pouring out into a larger body of water.
- Synonym: rivierdelta
Hypernyms[edit]
Coordinate terms[edit]
Derived terms[edit]
Finnish[edit]
Δδ | Previous: | gamma |
---|---|---|
Next: | epsilon |
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta
- delta (Greek letter)
Declension[edit]
Inflection of delta (Kotus type 9/kala, no gradation) | |||
---|---|---|---|
nominative | delta | deltat | |
genitive | deltan | deltojen | |
partitive | deltaa | deltoja | |
illative | deltaan | deltoihin | |
singular | plural | ||
nominative | delta | deltat | |
accusative | nom. | delta | deltat |
gen. | deltan | ||
genitive | deltan | deltojen deltainrare | |
partitive | deltaa | deltoja | |
inessive | deltassa | deltoissa | |
elative | deltasta | deltoista | |
illative | deltaan | deltoihin | |
adessive | deltalla | deltoilla | |
ablative | deltalta | deltoilta | |
allative | deltalle | deltoille | |
essive | deltana | deltoina | |
translative | deltaksi | deltoiksi | |
instructive | — | deltoin | |
abessive | deltatta | deltoitta | |
comitative | — | deltoineen |
Possessive forms of delta (type kala) | ||
---|---|---|
possessor | singular | plural |
1st person | deltani | deltamme |
2nd person | deltasi | deltanne |
3rd person | deltansa |
Derived terms[edit]
See also[edit]
Anagrams[edit]
French[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta m (plural delta or deltas)
- delta (Greek letter)
Noun[edit]
delta m (plural deltas)
- delta (geographical feature)
- Hypernym: embouchure
Further reading[edit]
- “delta”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.
Galician[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Noun[edit]
delta m (plural deltas)
Hungarian[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta (plural delták)
Declension[edit]
Inflection (stem in long/high vowel, back harmony) | ||
---|---|---|
singular | plural | |
nominative | delta | delták |
accusative | deltát | deltákat |
dative | deltának | deltáknak |
instrumental | deltával | deltákkal |
causal-final | deltáért | deltákért |
translative | deltává | deltákká |
terminative | deltáig | deltákig |
essive-formal | deltaként | deltákként |
essive-modal | — | — |
inessive | deltában | deltákban |
superessive | deltán | deltákon |
adessive | deltánál | deltáknál |
illative | deltába | deltákba |
sublative | deltára | deltákra |
allative | deltához | deltákhoz |
elative | deltából | deltákból |
delative | deltáról | deltákról |
ablative | deltától | deltáktól |
non-attributive possessive - singular |
deltáé | deltáké |
non-attributive possessive - plural |
deltáéi | deltákéi |
Possessive forms of delta | ||
---|---|---|
possessor | single possession | multiple possessions |
1st person sing. | deltám | deltáim |
2nd person sing. | deltád | deltáid |
3rd person sing. | deltája | deltái |
1st person plural | deltánk | deltáink |
2nd person plural | deltátok | deltáitok |
3rd person plural | deltájuk | deltáik |
Further reading[edit]
- delta in Bárczi, Géza and László Országh. A magyar nyelv értelmező szótára (‘The Explanatory Dictionary of the Hungarian Language’). 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 2023)
Icelandic[edit]
Noun[edit]
delta f (genitive singular deltu, nominative plural deltur)
- delta (Greek letter)
Declension[edit]
Indonesian[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta
- delta,
- The fourth letter of the modern Greek alphabet Δ, δ.
- (geography) A landform at the mouth of a river where it empties into a body of water.
Further reading[edit]
- “delta” in Online Great Dictionary of the Indonesian Language [Kamus Besar Bahasa Indonesia Daring], Jakarta: Language Development and Fostering Agency — Ministry of Education, Culture, Research, and Technology of the Republic Indonesia, 2016.
Italian[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta m (invariable)
- delta (all senses)
Derived terms[edit]
Anagrams[edit]
Latvian[edit]
Noun[edit]
delta f (4th declension)
Declension[edit]
Norwegian Bokmål[edit]
Etymology 1[edit]
From Ancient Greek δέλτα (délta).
Noun[edit]
delta m (definite singular deltaen, indefinite plural deltaer, definite plural deltaene)
- the Greek letter Δ, δ (delta)
Etymology 2[edit]
Noun[edit]
delta n (definite singular deltaet, indefinite plural delta or deltaer, definite plural deltaene)
- a river delta
Derived terms[edit]
Etymology 3[edit]
From del (“part”) + ta (“take”); i.e. to take (a) part in something; to partake in something.
Verb[edit]
delta (imperative delta, present tense deltar, passive deltas, simple past deltok, past participle deltatt, present participle deltakende)
- to participate; to partake
Related terms[edit]
References[edit]
- “delta” in The Bokmål Dictionary.
Norwegian Nynorsk[edit]
Etymology 1[edit]
From del (“part”) + ta (“take”); i.e. to take (a) part in something.
Alternative forms[edit]
Verb[edit]
delta (present tense deltek or deltar, past tense deltok, past participle delteke or deltatt, passive infinitive delteken, present participle deltakande, imperative delta)
- to participate
Related terms[edit]
Etymology 2[edit]
From Ancient Greek δέλτα (délta).
Noun[edit]
delta m (definite singular deltaen, indefinite plural deltaer or deltaar, definite plural deltaene or deltaane)
- the Greek letter Δ, δ (delta)
Etymology 3[edit]
A specialized use of delta (Etymology 2).
Noun[edit]
delta n (definite singular deltaet, indefinite plural delta, definite plural deltaa)
- a river delta
Derived terms[edit]
References[edit]
- “delta” in The Nynorsk Dictionary.
Polish[edit]
Etymology[edit]
Borrowed from Ancient Greek δέλτα (délta), from Phoenician 𐤃 (d /dalet/).
Pronunciation[edit]
Noun[edit]
delta f
- delta (Greek letter Δ, δ)
- (mathematics, colloquial) discriminant
- Synonym: wyróżnik
- (geography) delta (landform at the mouth of a river)
- (aeronautics) delta wing
Declension[edit]
Derived terms[edit]
Further reading[edit]
- delta in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
- delta in Polish dictionaries at PWN
Portuguese[edit]
Etymology[edit]
Borrowed from Ancient Greek δέλτα (délta).
Pronunciation[edit]
- Hyphenation: del‧ta
Noun[edit]
delta m (plural deltas)
Derived terms[edit]
Serbo-Croatian[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
dȅlta f (Cyrillic spelling де̏лта)
Declension[edit]
Spanish[edit]
Etymology[edit]
From Ancient Greek δέλτα (délta).
Pronunciation[edit]
Noun[edit]
delta f (plural deltas)
- Greek letter delta
Derived terms[edit]
Noun[edit]
delta m (plural deltas)
Further reading[edit]
- “delta”, in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014
Swahili[edit]
Etymology[edit]
Pronunciation[edit]
Audio (Kenya) (file)
Noun[edit]
delta (n class, plural delta)
- delta (landform at the mouth of a river)
Swedish[edit]
Etymology 1[edit]
From Ancient Greek δέλτα (délta).
Noun[edit]
delta n
- the Greek letter Δ, δ (delta)
- a river delta
Declension[edit]
Declension of delta | ||||
---|---|---|---|---|
Singular | Plural | |||
Indefinite | Definite | Indefinite | Definite | |
Nominative | delta | deltat | deltan | deltana |
Genitive | deltas | deltats | deltans | deltanas |
Etymology 2[edit]
From del (“part”) + ta(ga) (“take”); i.e. to take (a) part in something.
Alternative forms[edit]
- deltaga (dated)
Pronunciation[edit]
audio (file)
Verb[edit]
delta (present deltar, preterite deltog, supine deltagit, imperative delta)
- to participate
Conjugation[edit]
Active | Passive | |||
---|---|---|---|---|
Infinitive | delta | — | ||
Supine | deltagit | — | ||
Imperative | delta | — | ||
Imper. plural1 | deltan | — | ||
Present | Past | Present | Past | |
Indicative | deltar | deltog | — | — |
Ind. plural1 | delta | deltogo | — | — |
Subjunctive2 | delta | deltoge | — | — |
Participles | ||||
Present participle | deltagande | |||
Past participle | — | |||
1 Archaic. 2 Dated. See the appendix on Swedish verbs. |
Related terms[edit]
Anagrams[edit]
- English terms derived from Ancient Greek
- English doublets
- English 2-syllable words
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- Rhymes:English/ɛltə
- Rhymes:English/ɛltə/2 syllables
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- en:Mathematics
- en:Computing
- English informal terms
- en:Physics
- en:Engineering
- en:Surveying
- en:Finance
- en:Chemistry
- American English
- en:Military
- en:Astronomy
- en:Medicine
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- en:Cryptography
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- ast:Geography
- ast:Greek letter names
- Catalan terms derived from Ancient Greek
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- ca:Geography
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- Rhymes:Finnish/eltɑ
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- Finnish lemmas
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- fi:Greek letter names
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- fr:Geography
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- gl:Geography
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- id:Geography
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- Rhymes:Italian/ɛlta
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- Italian lemmas
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- nb:Greek letter names
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- Norwegian Nynorsk terms derived from Ancient Greek
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- nn:Greek letter names
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- Polish terms borrowed from Ancient Greek
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- pt:Geography
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- sh:Greek letter names
- Spanish terms borrowed from Ancient Greek
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- Rhymes:Spanish/elta
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- es:Geography
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- sv:Geography
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