decisionn.[L. decisio, fr. decdere, decisum: cf. F. dcision. See Decide.]1. Cutting off; division; detachment of a part.(Bp. Pearson.)2. The act of deciding; act of settling or terminating, as a controversy, by giving judgment on the matter at issue; determination, as of a question or doubt; settlement; conclusion.()The decision of some dispute. (Atterbury.)3. An account or report of a conclusion, especially of a legal adjudication or judicial determination of a question or cause; as, a decision of arbitrators; a decision of the Supreme Court.()4. The quality of being decided; prompt and fixed determination; unwavering firmness; as, to manifest great decision.()()