term:

Dependent Relative Revocation

dependent relative revocation n

: a doctrine holding that if the destruction, cancellation, or revocation of a will is dependent on the making of a new will which is not made or is found to be invalid then the original will is still in effect

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.