injection

injection

See also: înjection

English

An injection (relation on sets in mathematics)

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.

Pronunciation

• IPA^(key): /ɪn.ˈd͡ʒɛk.ʃən/

• Audio (Southern England)

  (file)

• Hyphenation: in‧jec‧tion
• Rhymes: -ɛkʃən

Noun

injection (countable and uncountable, plural injections)

1. The act of injecting, or something that is injected.
2. A specimen prepared by injection.
3. (category theory) A morphism from either one of the two components of a coproduct to that coproduct.
4. (construction) The act of inserting materials like concrete grout or gravel by using high pressure pumps.
5. (figuratively) The supply of additional funding to a person or a business.

   The troubled business received a much-needed cash injection.

6. (mathematics) A relation on sets (X,Y) that associates each element of Y with at most one element of X.

   Synonym: injective function

7. (computer security) The insertion of program code into an application, URL, hardware, etc.; especially when malicious or when the target is not designed for such insertion.

   a SQL injection exploit allowing a malicious user to modify a database query

8. (space science) 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.
   • 2015, Henry L. Richter, America's Leap Into Space

     It had been determined that one of the whip turnstile antennas had broken off from Explorer 1 shortly after injection into orbit, so these were eliminated.

9. (set theory) 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.
10. (medicine) Something injected subcutaneously, intravenously, or intramuscularly by use of a syringe and a needle.
11. (medicine) Congestion (of a body part, with blood or other fluid), such as hyperemia.

    conjunctival injection

12. (internal combustion engines) Fuel injection: the pressurized introduction of fuel into a cylinder.

    direct injection

    tuned port injection

13. (steam engines) The act of throwing cold water into a condenser to produce a vacuum.
14. (steam engines) The cold water thrown into a condenser to produce a vacuum.

Hyponyms

• direct injection
• picoinjection
• sperm injection
• water injection

 

(computer security) Insertion of program code into an application, URL, etc.

• broker injection
• code injection
• constructor injection
• dependency injection
• email injection
• fault injection
• network injection
• packet injection
• prompt injection
• SQL injection

 

(construction)

• gravel injection
• grout injection

 

Derived terms

• injection lipolysis
• injection moulding
• injective
• injectively

 

(construction) Terms derived from injection

• injection cock
• injection condenser
• injection pipe

 

Related terms

• inject

Translations

act of injecting, or something injected

Armenian: ներարկում (hy) (nerarkum), սրսկում (hy) (srskum) Asturian: inyeición f Bulgarian: инжекция (bg) f (inžekcija) Catalan: injecció (ca) f Chinese: Mandarin: 注射 (zh) (zhùshè) Dutch: inspuiting (nl) f Esperanto: injekto Finnish: ruiskutus (fi), pistos (fi) (act), ruiske (thing injected) French: injection (fr) f Galician: inxección (gl) f German: Injektion (de) f Greek: ένεση (el) f (énesi) Icelandic: innspýting (is) f Ido: injekto (io), injektado (io) Indonesian: injeksi (id), suntikan (id) Japanese: 注射 (ja) (ちゅうしゃ, chūsha) Korean: 주사(注射) (ko) (jusa) Malay: penyuntikan Occitan: injeccion (oc) f Polish: zastrzyk (pl) m, wstrzyknięcie n Portuguese: injeção (pt) f (Brazil), injecção (pt) f (Portugal) Romanian: injecție (ro) f Russian: инъе́кция (ru) f (inʺjékcija), уко́л (ru) m (ukól), влива́ние (ru) n (vlivánije), впры́скивание (ru) n (vprýskivanije) Serbo-Croatian: Cyrillic: инјекција f, инјектирање n, убризгавање n Roman: injekcija (sh) f, injektiranje n, ubrizgavanje n Slovak: injekcia, vstreknutie, vstrekovanie Swahili: sindano (sw) Ukrainian: ін'є́кція f (inʺjékcija) Walloon: pikeure (wa) f

medicine: something injected

Armenian: ներարկում (hy) (nerarkum), սրսկում (hy) (srskum) Asturian: inyeición f Catalan: injecció (ca) f Dutch: injectie (nl), spuitje (nl) Finnish: ruiske, injektio (fi) French: injection (fr) f Galician: inxección (gl) f Georgian: ინექცია (inekcia) Greek: Ancient: ἔνεμα n (énema) Hebrew: זריקה‎ (he) f Hungarian: injekció (hu) Indonesian: suntikan (id) Italian: iniezione (it) f Malay: suntikan (ms) Malayalam: കുത്തിവെയ്പു് (kuttiveypŭŭ) ഇൻഞ്ചക്ഷൻ (iṉñcakṣaṉ) Occitan: injeccion (oc) f Persian: تزریق‎ (fa) (tazriq), انژکسیون‎ (fa) (anžeksiyon) Polish: zastrzyk (pl) m Portuguese: injeção (pt) f Romanian: injecție (ro) f Russian: инъе́кция (ru) f (inʺjékcija) Samoan: tui Serbo-Croatian: Cyrillic: инјекција f Roman: injekcija (sh) f Slovak: injekcia Spanish: inyección (es) f Tongan: huhu Ukrainian: ін'є́кція f (inʺjékcija) Walloon: pikeure (wa) f

set theory: one-to-one mapping

Catalan: funció injectiva f Chinese: Mandarin: 单射 (zh) (dānshè) Czech: injekce (cs) f Finnish: injektio (fi) French: injection (fr) f German: Injektion (de) f, injektive Funktion f Greek: εμφύτευση (el) f (emfýtefsi) Japanese: 単射 (ja) (tansha) Korean: 단사(單射) (ko) (dansa) Polish: iniekcja (pl) f Portuguese: função injetiva f Romanian: injecție (ro) f, funcție injectivă f Russian: инъе́кция (ru) f (inʺjékcija) Serbo-Croatian: Cyrillic: инјекција f Roman: injekcija (sh) f Slovak: injekcia Swedish: injektion (sv) c

computing: insertion of code

Bulgarian: вмъкване (bg) n (vmǎkvane) Finnish: injektio (fi) French: please add this translation if you can German: Einschleusung f, Code-Einschleusung f Greek: please add this translation if you can Spanish: please add this translation if you can

See also

• bijection (2)
• hypodermic
• immunization
• jab
• surjection (2)

References

• injection on Wikipedia.Wikipedia

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French

Etymology

Borrowed from Latin iniectiō, iniectiōnem.

Pronunciation

• IPA^(key): /ɛ̃.ʒɛk.sjɔ̃/

• Audio

  (file)

Noun

injection f (plural injections)

1. injection

Related terms

• injecter

Descendants

• → Romanian: injecție
• → Turkish: enjeksiyon

Further reading

• “injection”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.