A more thorough explanation:

Mesne conveyance is a legal term that refers to an intermediate conveyance, which is a transfer of property or a right that occurs between the first grantee and the current holder. It is a conveyance that occupies an intermediate position in the chain of title.

For example, if John sells a property to Jane, and then Jane sells the same property to Tom, the conveyance from Jane to Tom is a mesne conveyance because it occurs between the first grantee (John) and the current holder (Tom).

Mesne conveyance is an important concept in real estate law because it helps to establish a clear chain of title, which is necessary for determining ownership and resolving disputes over property rights.