FIRST-DEGREE RELATIVE By N., Sam M.S. - 24 the term that is given to a parent, son, daughter or to a sibling. A direct relation to you. Compare second degree relative. FIRST-DEGREE RELATIVE: "Joe's mum was his first degree relative." Related Psychology Terms OEDIPUS COMPLEX (Oedipus Situation) Developing a Case Study ANTISOCIAL REACTION FREUD, SIGMUND (1856-1939) OBSESSRVE-COMPULSIVE REACTION READING DISABILITY (Paralexia, Dyslexia) Hitler and Conformity SCHIZOID PERSONALITY (Schizo- thymic Personality) ADOLESCENCE (Theories) Cite this page: N., Sam M.S., "FIRST-DEGREE RELATIVE," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/first-degree-relative/ (accessed December 8, 2022).