Nolo's Plain-English Law Dictionary

Overrule

1) A trial judge's decision to reject a party's objection--often, to a question for a witness or the admission of evidence. By overruling the objection, the judge allows the question or evidence in court. 2) An appellate court's decision that a prior appellate decision was incorrect, and is therefore no longer a valid precedent on the legal issue in question.
NOLO-web2:DRU1.6.12.2.20161011.41205