Inalienable possession

Inalienable possession is the possessive relation that a person has with his body parts or properties, as distinguished from the possessive relation with things that he can give away or loose. EXAMPLE: John has blue eyes is a case of inalienable possession, while John has a blue car is a case of alienable possession. The notion of inalienable possession is also used to explicate the ambiguity of e.g. John broke his leg : in the reading which is closest to John's leg broke, his designates inalienable possession.

Link
Utrecht Lexicon of Linguistics