Simple past tense and past participle of inject.(verb)
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Use "injected" in a sentence
"Somehow the phrase injected fear into a whole franchise; for the Lakers came out of the gate extremely tight."
"Trilling wants something like the consciousness of sin injected into liberalism, and the "job of criticism" is thus the moral critic's job of raising our awareness of humankind's fallen state, something for which Trilling finds literature eminently useful."
"Reading D.A. is like a getting a shot of Heinlein injected directly into the bloodstream."