Definitions for "Peremptory challenge"
Keywords:  juror, challenge, jury, dismiss, excuse
Rejection of a potential juror by either side in a case for no articulated reason; each side has a set limit.
A court may grant each side in a civil or criminal trial the right to exclude a certain number of potential jurors without giving a reason.
Opportunity during "voire dire" (jury selection) in which a party to a lawsuit may dismiss a member of the jury pool without cause.
a privilege of trial counsel which may be exercised arbitrarily and without explanation