a person, as a complainant or chief witness, instigating prosecution in a criminal proceeding.
2.
a person who prosecutes.
Origin
1590-1600; < Medieval Latin,Late Latinprōsecūtor pursuer. See prosecute, -tor
Examples from the web for prosecutor
Being a prosecutor means never having to say you're sorry.
It was not immediately known if the prosecutor planned to retry the other defendants.
Carrion would not speculate about motives or suspects, saying only that the local prosecutor was conducting the investigation.
Weeks later the prosecutor was still trying to get her to confess.
It was not immediately known if the prosecutor planned to retry the defendants.
The prosecutor now faces charges of abusing his office.
If the prosecutor is obliged to choose his cases, it follows that he can choose his defendants.
The prosecutor has to ask for it, and the jury has to give it.
The prosecutor who initially pursued the lacrosse players, who was then up for election, is now facing disciplinary proceedings.
Few, however, expected the prosecutor to present such a feast of bad behaviour.
British Dictionary definitions for prosecutor
prosecutor
/ˈprɒsɪˌkjuːtə/
noun
1.
a person who institutes or conducts legal proceedings, esp in a criminal court
Word Origin and History for prosecutor
n.
1590s, from Medieval Latin prosecutor, agent noun from prosequi (see prosecute). Specific legal sense of "one who brings a case in a court of law" is from 1620s; earlier such a person was a promoter (late 15c.). Related: Prosecutorial.