Noun
(law) an estate whose duration is limited to the life of the person holding it
Source: WordNet“Over our history, priests, adoptive parents, adoptees, former clients and others aligned with our mission have remembered Catholic Charities through bequests made in their will, an insurance policy, life estate, gift of land and/or stock.” Source: Internet
In effect, you are providing what is known as a "life estate" to the survivor, and the terms and conditions of that estate must be recorded on land records in the jurisdiction where your property is located. Source: Internet
We gave the house to them, and we retain a life estate. Source: Internet