Partial Release

A mortgage provision allowing some of the pledged collateral to be released from the mortgage contract if certain conditions are met.

Investopedia Says:
In other words, the partial release allows some of your collateral can be taken off the mortgage once a certain amount of the loan has been paid.

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Provision in a Mortgage that allows some of the property pledged to be freed from serving as Collateral when certain conditions are met.

A provision in a Mortgage that allows some of the property pledged to be freed from serving as Collateral.Example: Baker sold 3 acres of land, and accepted a $30,000 Purchase Money Mortgage. Partial releases in the mortgage require that, upon each $10,000 Principal payment, one acre be freed from serving as collateral. The sequence of release was Platted and described in the mortgage.

In a prestressed concrete member, a release of part of the total prestress initially held entirely in the prestressed reinforcement.