Simple past tense and past participle of prime.(verb)
Prepared for use or action(adjective)
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Use "primed" in a sentence
"I had been waiting for his call primed with a remark which had not occurred to me till after he had gone away."
"He realized he would have to become the Philosopher’s Stone himself, his brain primed by this device utilizing the secrets he so fortuitously discovered …"
"Their intense emphasis on reducing budget deficits "primed" participants to focus on deficits rather than on the needs of retirees when evaluating Social Security policy."