Casting Vote
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
The deciding vote In a deliberative or parliamentary body, cast by the presiding officer in the event of a tie. It sometimes signifies only such a vote, and sometimes the double vote of one who first votes as a member, and afterwards votes to cast off the tie, if one results.
1 Bl. Comm. 181, note; Jacob, "Parliament" (7).