Heirs of the body refers to the lineal descendants of one's bloodline, such as children or grandchildren, until such time as there are no direct descendants. The term is intended to distinguish between a person’s natural descendants and the person’s other heirs, such as a spouse. If the bloodline runs out, the property will "revert" to the nearest relative traced back to the original owner.
See also: Lineal descendant
[Last updated in March of 2022 by the Wex Definitions Team]