living will

:  a document in which the signer requests to be allowed to die rather than be kept alive by artificial means in the event of becoming disabled beyond a reasonable expectation of recovery—see advance directive

:  a document in which the signer indicates preferences or directions for the administration and especially the withdrawal or withholding of life-sustaining medical treatment in the event of terminal illness or permanent unconsciousness — see also advance directive — compare health care power of attorney at power of attorney