the mark of Cain


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

the mark of Cain

the stigma of a murderer; a sign of infamy.
According to the book of Genesis, God placed a mark on Cain after the murder of his brother Abel, originally as a sign that he should not be killed or harmed; this was later taken to identify him as a murderer (Genesis 4:15).
See also: Cain, mark, of