Definitions of autoinjector
  1. noun
    a hypodermic syringe to use in injecting yourself with a liquid
    “United States troops now carry atropine and autoinjectors in their first-aid kits”
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    type of:
    hypo, hypodermic, hypodermic syringe
    a piston syringe that is fitted with a hypodermic needle for giving injections
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