noun · 17 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ɪnˈd͡ʒɛk.ʃən/
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -ɛkʃən
CMU ARPABET:IH2 N JH EH1 K SH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The act of injecting, or something that is injected.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A specimen prepared by injection.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A morphism from either one of the two components of a coproduct to that coproduct.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
The act of inserting materials like concrete grout or gravel by using high pressure pumps.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: business, construction, manufacturing
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
The supply of additional funding to a person or a business.
Definition source: English Wiktionary via Wiktextract
Usage: countable, figuratively, uncountable
Examples
The troubled business received a much-needed cash injection.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
A relation on sets (X,Y) that associates each element of Y with at most one element of X.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: injective function
Antonyms: none provided
7
noun
Meaning 7
The insertion of program code into an application, URL, hardware, etc.; especially when malicious or when the target is not designed for such insertion.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: computer security
Examples
a SQL injection exploit allowing a malicious user to modify a database query
Meaning relationships
Synonyms: none provided
Antonyms: none provided
8
noun
Meaning 8
The act of putting a spacecraft into a particular orbit, especially for changing a stable orbit into a transfer orbit, e.g. trans-lunar injection.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
9
noun
Meaning 9
A function that maps distinct x in the domain to distinct y in the codomain; formally, a f: X → Y such that f(a) = f(b) implies a = b for any a, b in the domain.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: mathematics, sciences, set-theory
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
10
noun
Meaning 10
Something injected subcutaneously, intravenously, or intramuscularly by use of a syringe and a needle.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
11
noun
Meaning 11
Congestion (of a body part, with blood or other fluid), such as hyperemia.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
Examples
conjunctival injection
Meaning relationships
Synonyms: none provided
Antonyms: none provided
12
noun
Meaning 12
Fuel injection: the pressurized introduction of fuel into a cylinder.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: internal combustion engines
Examples
direct injection
tuned port injection
Meaning relationships
Synonyms: none provided
Antonyms: none provided
13
noun
Meaning 13
The act of throwing cold water into a condenser to produce a vacuum.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: steam engines
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
14
noun
Meaning 14
The cold water thrown into a condenser to produce a vacuum.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: steam engines
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
15
noun
Meaning 15
the forceful insertion of a substance under pressure
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: injectant
Antonyms: none provided
Broader terms: solution
History
Etymology
Borrowed from Middle French injection, from Latin iniectio. The mathematical sense is from French injection, introduced by Nicolas Bourbaki in their treatise Éléments de mathématique. Equivalent to inject + -ion.
Across languages
Translations
177 source translations are retained for this English entry.
Albanian:
injeksion
— act of injecting, or something injected
Albanian:
injektim
— act of injecting, or something injected
Arabic:
حُقْنَة
(ḥuqna)
— act of injecting, or something injected
Arabic:
حَقْن
(ḥaqn)
— act of injecting, or something injected
Armenian:
ներարկում
(nerarkum)
— act of injecting, or something injected
Armenian:
սրսկում
(srskum)
— act of injecting, or something injected
Asturian:
inyeición
— act of injecting, or something injected
Azerbaijani:
inyeksiya
— act of injecting, or something injected
Belarusian:
ін'е́кцыя
(inʺjékcyja)
— act of injecting, or something injected
Belarusian:
уко́л
(ukól)
— act of injecting, or something injected
Belarusian:
упы́рскванне
(upýrskvannje)
— act of injecting, or something injected
Bengali:
ইনজেকশন
(injekśon)
— act of injecting, or something injected
Bulgarian:
инже́кция
(inžékcija)
— act of injecting, or something injected
Bulgarian:
впръ́скване
(vprǎ́skvane)
— act of injecting, or something injected
Catalan:
injecció
— act of injecting, or something injected
Chinese Cantonese:
注射
(zyu3 se6)
— act of injecting, or something injected
Chinese Mandarin:
注射
(zhùshè)
— act of injecting, or something injected
Czech:
injekce
— act of injecting, or something injected
Czech:
vstříknutí
— act of injecting, or something injected
Danish:
indsprøjtning
— act of injecting, or something injected
Danish:
injektion
— act of injecting, or something injected
Dutch:
inspuiting
— act of injecting, or something injected
Esperanto:
injekto
— act of injecting, or something injected
Estonian:
süst
— act of injecting, or something injected
Estonian:
süstimine
— act of injecting, or something injected
Estonian:
injektsioon
— act of injecting, or something injected
Finnish:
ruiskutus
— act of injecting, or something injected
Finnish:
pistos
— act of injecting, or something injected
Finnish:
ruiske
— act of injecting, or something injected
French:
injection
— act of injecting, or something injected
Galician:
inxección
— act of injecting, or something injected
Georgian:
ინექცია
(inekcia)
— act of injecting, or something injected
German:
Injektion
— act of injecting, or something injected
German:
Spritze
— act of injecting, or something injected
Greek:
ένεση
(énesi)
— act of injecting, or something injected
Hebrew:
זְרִיקָה
(z'riká)
— act of injecting, or something injected
Hindi:
इंजेक्शन
(iñjekśan)
— act of injecting, or something injected
Hungarian:
befecskendezés
— act of injecting, or something injected
Hungarian:
injekció
— act of injecting, or something injected
Icelandic:
innspýting
— act of injecting, or something injected
Ido:
injekto
— act of injecting, or something injected
Ido:
injektado
— act of injecting, or something injected
Indonesian:
injeksi
— act of injecting, or something injected
Indonesian:
suntikan
— act of injecting, or something injected
Italian:
iniezione
— act of injecting, or something injected
Japanese:
注射
(chūsha)
— act of injecting, or something injected
Kazakh:
инъекция
(ineksiä)
— act of injecting, or something injected
Khmer:
ការចាក់ថ្នាំ
(kaacakthnam)
— act of injecting, or something injected
Korean:
주사
(jusa)
— act of injecting, or something injected
Northern Kurdish:
enjeksiyon
— act of injecting, or something injected
Kyrgyz:
инъекция
(inyektsiya)
— act of injecting, or something injected
Kyrgyz:
укол
(ukol)
— act of injecting, or something injected
Lao:
ການສັກຢາ
(kān sak yā)
— act of injecting, or something injected
Lao:
ສັກຢາ
(sak yā)
— act of injecting, or something injected
Latin:
iniectiō
— act of injecting, or something injected
Latvian:
injekcija
— act of injecting, or something injected
Latvian:
šprice
— act of injecting, or something injected
Lithuanian:
injekcija
— act of injecting, or something injected
Macedonian:
инјекција
(injekcija)
— act of injecting, or something injected
Malay:
penyuntikan
— act of injecting, or something injected
Malay:
suntikan
— act of injecting, or something injected
Mongolian:
тарилга
(tarilga)
— act of injecting, or something injected
Norwegian Bokmål:
injeksjon
— act of injecting, or something injected
Occitan:
injeccion
— act of injecting, or something injected
Pashto:
تزريق
(tazriq)
— act of injecting, or something injected
Pashto:
انجکشن
(enjekšan)
— act of injecting, or something injected
Persian:
تَزریق
(tazriq)
— act of injecting, or something injected
Persian:
اَنژِکسیون
(anžeksyon)
— act of injecting, or something injected
Polish:
zastrzyk
— act of injecting, or something injected
Polish:
wstrzyknięcie
— act of injecting, or something injected
Polish:
iniekcja
— act of injecting, or something injected
Portuguese:
injeção
— act of injecting, or something injected
Romanian:
injecție
— act of injecting, or something injected
Russian:
инъе́кция
(inʺjékcija)
— act of injecting, or something injected
Russian:
уко́л
(ukól)
— act of injecting, or something injected
Russian:
влива́ние
(vlivánije)
— act of injecting, or something injected
Russian:
впры́скивание
(vprýskivanije)
— act of injecting, or something injected
Serbo-Croatian:
инјѐкција
— act of injecting, or something injected
Serbo-Croatian:
инјектирање
— act of injecting, or something injected
Serbo-Croatian:
убризгавање
— act of injecting, or something injected
Serbo-Croatian:
injèkcija
— act of injecting, or something injected
Serbo-Croatian:
injektiranje
— act of injecting, or something injected
Serbo-Croatian:
ubrizgavanje
— act of injecting, or something injected
Slovak:
injekcia
— act of injecting, or something injected
Slovak:
vstreknutie
— act of injecting, or something injected
Slovak:
vstrekovanie
— act of injecting, or something injected
Slovene:
injekcija
— act of injecting, or something injected
Spanish:
inyección
— act of injecting, or something injected
Swahili:
sindano
— act of injecting, or something injected
Swedish:
injektion
— act of injecting, or something injected
Swedish:
insprutning
— act of injecting, or something injected
Tajik:
тазриқ
(tazriq)
— act of injecting, or something injected
Thai:
การฉีดยา
(gaan-chìit-yaa)
— act of injecting, or something injected
Thai:
ฉีดยา
(chìit-yaa)
— act of injecting, or something injected
Turkish:
enjeksiyon
— act of injecting, or something injected
Turkmen:
ukol
— act of injecting, or something injected
Ukrainian:
ін'є́кція
(inʺjékcija)
— act of injecting, or something injected
Ukrainian:
уко́л
(ukól)
— act of injecting, or something injected
Ukrainian:
за́штрик
(záštryk)
— act of injecting, or something injected
Ukrainian:
за́стрик
(zástryk)
— act of injecting, or something injected
Ukrainian:
упо́рскування
(upórskuvannja)
— act of injecting, or something injected
Ukrainian:
упри́скування
(uprýskuvannja)
— act of injecting, or something injected
Urdu:
اِنْجِکْشَن
(injekśan)
— act of injecting, or something injected
Uyghur:
ئوكۇل
(okul)
— act of injecting, or something injected
Uzbek:
inyeksiya
— act of injecting, or something injected
Uzbek:
ukol
— act of injecting, or something injected
Vietnamese:
sự tiêm
— act of injecting, or something injected
Walloon:
pikeure
— act of injecting, or something injected
