The vote of a presiding officer in an assembly or council, given to break a tie.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "casting vote" in a sentence
"Ulpian, and Modestinus, were established as the oracles of jurisprudence: a majority was decisive: but if their opinions were equally divided, a casting vote was ascribed to the superior wisdom of Papinian."
"From Hawkins, whom his casting vote made Provost of Oriel, he gained the Catholic doctrines of tradition and baptismal regeneration, as well as a certain precision of terms which, long afterwards, gave rise to"