injector vs jab

injector

noun
  • Any of various devices that are used to inject something. 

  • An object that realizes a dependency injection. 

  • An apparatus by which a stream of water is forced into a steam boiler. 

  • One who injects (himself or herself with) psychoactive drugs. 

jab

noun
  • A medical hypodermic injection (vaccination or inoculation) 

  • A mild verbal insult. 

  • A quick stab or blow; a poking or thrusting motion. 

  • A short straight punch. 

  • A vaccination, whether or not delivered via conventional injection. 

verb
  • To give someone an injection 

  • To poke or thrust abruptly, or to make such a motion. 

  • To deliver a quick punch. 

How often have the words injector and jab occurred in a corpus of books? (source: Google Ngram Viewer )