injector

Everyday

1. A device that pushes a liquid or gas into something, for example fuel into a car engine. tree →
2. A pen-like device that pushes medicine through the skin, such as an adrenaline auto-injector (EpiPen) used for severe allergies. tree →

In the lessons

In safety and health lessons the most important one is the auto-injector: children with severe allergies (nuts, bee stings) may carry one, and adults are trained to use it in an emergency. In science and engineering: «fuel injector» in engines.

Examples

• My friend carries an auto-injector because she is allergic to peanuts. tree →
• The teacher knows how to use the injector in an emergency. tree →
• Keep the injector in a cool, safe place. tree →
• The mechanic cleaned the car's fuel injectors. tree →
• After using the injector, call an ambulance. tree →
• Each injector has a guard to hide the needle. tree →

Note

Countable: an injector, injectors (use «an» because it starts with a vowel sound). Related: «inject», «injection». Never play with a medical injector: it is real medicine with a needle.