Definition of Estate Upon Condition Expressed
An estate granted, either in fee-simple or otherwise, with an express qualification annexed, whereby the estate granted shall either commence, be enlarged, or be defeated upon performance or breach of such qualification or condition. 2 Bl.Comm. 154. An estate which is so expressly defined and limited by the words of its creation that it cannot endure for any longer time than till the contingency happens upon which the estate is to fail.
That's the definition of Estate Upon Condition Expressed in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.
