auto-injector
noun
au·to-in·ject·or
ˌȯ-tō-in-ˈjek-tər
variants
or less commonly autoinjector
plural auto-injectors also autoinjectors
: a medical device that is used for injecting a single, preloaded dose of a drug and that typically consists of a prefilled syringe activated when the device is pushed firmly against the body
Note: An auto-injector is often utilized for emergency medication administration.
Some parents and health officials say epinephrine auto-injectors should be as common in schools as defibrillators are, so immediate help would be available to any student suffering anaphylaxis …—Noreen S. Ahmed-Ullah
compare prefilled pen
Cite this Entry
“Auto-injector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/auto-injector. Accessed 25 Aug. 2026.
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