Abstract
There are common concepts between euthanasia and suicide because euthanasia is historically connected with the discourse on suicide. In widespread literature on euthanasia there is confusion over the concepts and definitions. These definitions are analyzed in this paper and along with other conclusions and distinctions the researcher has substantially defended his definition of euthanasia. There are two different usages of the term euthanasia: a narrow construal of euthanasia and broad construal of euthanasia. Contrary to other researches, the researcher agrees only with the narrow construal of euthanasia, i.e. active euthanasia. The researcher’s definition of euthanasia is: intentionally causing a terminally ill person’s death through an action performed by a physician. As a result, passive euthanasia is expunged from the definition of euthanasia. In addition to that, the definition excludes suicide, assisted suicide, and physician-assisted suicide.