# injector

/ˌɪnˈdʒɛktɝ/ (US) · /ɪndʒˈɛktɐ/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/injector
Updated: 2026-05-20

## Definition

a tool or device used to put liquid or gas into something else. You use it to give medicine to a person or to add fuel to a car engine.

For teachers: a device or tool used to introduce a liquid or gas into another substance or container. Often refers to medical equipment for administering injections or mechanical components in internal combustion engines.

## Examples

- The nurse uses a small injector to give the medicine.
- The mechanic replaced the faulty fuel injector to improve the car's performance and fuel efficiency.
- In modern medical practice, the use of a high-precision injector ensures that the medication is delivered at a consistent rate, minimizing the risk of human error during the procedure.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.