euthanasia	the act of killing someone who is very ill or very old
assisted suicide	the act of helping someone who wants to die to kill themselves when they are too ill to do it alone
physician	a medical doctor, one who has general skill and is not a surgeon
palliative	a drug or medical treatment that reduces pain without curing the cause of the pain
symptom	any feeling of illness or physical or mental change that is caused by a particular disease
persistent	lasting for a long time or difficult to get rid of
life support	the equipment used to keep a dangerously ill person alive
dignity	calm, serious and controlled behaviour that makes people respect you