injector

American  

[in-jek-ter] / ɪnˈdʒɛk tər /

noun

1. a person or thing that injects.

2. Machinery.

   1. a device for injecting feedwater into a boiler against high pressure by means of a jet of steam.

   2. Also called fuel injector. a mechanism consisting of a pump, valves, and nozzles for spraying fuel into the cylinders of an internal-combustion engine.

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injector British  

/ ɪnˈdʒɛktə /

noun

1. a person or thing that injects

2. a device for spraying fuel into the combustion chamber of an internal-combustion engine

3. Also: inspirator. a device for forcing water into a steam boiler

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Etymology

Origin of injector

First recorded in 1735–45; inject + -or ²

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Example Sentences

See Examples For:

injector

Ozempic and Wegovy had been first to market and sold via injector pens, but Lilly had just launched a cheaper way to distribute tirzepatide, its GLP-1 for weight loss branded as Zepbound — in vials.

From MarketWatch ● Aug. 5, 2026

By using multiple electrodes and a technical gas injector, the researchers are increasing the reaction volume from approximately 50 milliliters to five liters.

From Science Daily ● Jul. 20, 2026

In 2025, Ford took a $600 million charge for a fuel injector recall.

From Barron's ● Apr. 10, 2026

Patients prescribed Wegovy will be able to self-administer the drug at home using a special pen injector device.

From BBC ● Mar. 31, 2026

She held the needle like a knife and swung the pen-like injector, then stopped just outside her thigh.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

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