A casting vote is a vote which may be exercised (usually in addition to his or her normal vote as a member of the body, if he or she has one) by the presiding officer of a council or legislative body, or of any committee, to resolve a deadlock and which can be exercised only when such a deadlock exists. Examples of officers who hold casting votes ...
The deciding vote cast by the presiding officer to resolve a deadlock when there are an equal number of votes on both sides
A Chair of Governors has a casting vote where an equal number of votes is cast for and against a motion. She/he may then, and only then, cast a second vote to decide the issue (or vote for the first time if he/she abstained on the first vote).
A casting-vote is the vote of a presiding officer in an assembly or council which decides a question when the votes of the assembly or house are equally divided between the affirmative and negative.
[n] - the deciding vote cast by the presiding officer to resolve a tie
a vote exercised by the Speaker or certain committee chairs only when the votes for and against a proposal are equal
An additional vote to be used by the Chair of Governors if an equal number of votes is cast for and against a motion.
noun the deciding vote cast by the presiding officer to resolve a tie