Full Idea
Abduction moves from some data to a 'best explanation'. It is not deduction because the data could be true but the conclusion false, and it is not induction because the conclusion may involve data not mentioned in the premises.
Gist of Idea
Abduction could have true data and a false conclusion, and may include data not originally mentioned
Source
Georges Rey (Contemporary Philosophy of Mind [1997], p.322)
Book Reference
Rey,Georges: 'Contemporary Philosophy of Mind' [Blackwell 1997], p.322