WordReference Random House Unabridged Dictionary of American English © 2017
in•jec•tor  (in jektər),USA pronunciation n. 
  1. a person or thing that injects.
  2. Mechanical Engineering[Mach.]
    • a device for injecting feedwater into a boiler against high pressure by means of a jet of steam.
    • AutomotiveAlso called  fuel injector. a mechanism consisting of a pump, valves, and nozzles for spraying fuel into the cylinders of an internal-combustion engine.
  • inject + -or2 1735–45

WordReference Random House Learner's Dictionary of American English © 2017
in•ject /ɪnˈdʒɛkt/USA pronunciation   v. 
  1. Medicineto force (a fluid) into a part of the body with a special needle: [+ object + into + object]The nurse injected the drug into the patient.[+ object + with + object]She injected the patient with the drug.
  2. to introduce (something different):[+ object + into + object]The host tried to inject some humor into the situation.
  3. to interject (a remark, etc.), as into conversation:[+ object]had remarks that he wished to inject at that moment.
in•jec•tor, n. [countable]See -jec-.

WordReference Random House Unabridged Dictionary of American English © 2017
in•ject  (in jekt),USA pronunciation v.t. 
  1. Medicineto force (a fluid) into a passage, cavity, or tissue:to inject a medicine into the veins.
  2. to introduce (something new or different):to inject humor into a situation.
  3. to introduce arbitrarily or inappropriately;
    intrude.
  4. to interject (a remark, suggestion, etc.), as into conversation.
  • Latin injectus past participle of in(j)icere to throw in, equivalent. to in- in-2 + -jec- (combining form of jac- throw) + -tus past participle suffix
  • 1590–1600

inject., 
  • Medicine(in prescriptions) an injection.
    • Latin injectiō

    'injector' also found in these entries:
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