Law. a contract between two people who are about to marry regarding their respective property and support rights upon termination of the marriage by divorce or death, and sometimes regarding property rights during the marriage.
Also called antenuptial agreement.
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British Dictionary definitions for antenuptial agreement
a contract made between a man and woman before they marry, agreeing on the distribution of their assets in the event of divorce
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012