injection
in·jec·tion/ɪnˈd͡ʒɛk.ʃən/noun
injection is spelled I-N-J-E-C-T-I-O-N: 9 letters and 3 syllables (in·jec·tion). It appears 9.8 times per million words in written English, the 7,224th most frequent word form (wordfreq, 2021 data). As a noun, injection means “The act of injecting, or something that is injected” (English Wiktionary, September 2026). The plural of injection is injections.
How many letters and syllables are in injection?
| Letters | 9: I-N-J-E-C-T-I-O-N |
|---|---|
| Syllables | 3: in·jec·tion |
| In writing | 9.8 times per million words; the 7,224th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is injection?
Injection appears 9.8 times per million words in written English, the 7,224th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce injection?
- /ɪnˈd͡ʒɛk.ʃən/
Injection has 3 syllables, split in·jec·tion in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-injection.wav, Wikimedia Commons (author and licence on each file's page).
Forms of injection
- injections plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does injection mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The act of injecting, or something that is injected.
- 2
A specimen prepared by injection.
- 3
A morphism from either one of the two components of a coproduct to that coproduct.
- 4
The act of inserting materials like concrete grout or gravel by using high pressure pumps.
- 5
The supply of additional funding to a person or a business.
The troubled business received a much-needed cash injection.
- 6
A relation on sets (X,Y) that associates each element of Y with at most one element of X.
- 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.
a SQL injection exploit allowing a malicious user to modify a database query
- 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.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Injection in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | injection |
| German | Injektion, Spritze , injektive Funktion , Einschleusung, Code-Einschleusung |
| Portuguese | injeção , função injetiva |
| Spanish | inyección |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does injection come from?
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.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).