Define 'Projection' The attribution of one's own ideas, feelings, or attitudes to other people or to objects; especially : the externalization of blame, guilt, or responsibility as a defense against anxiety? The forming of a plan : scheming? Define 'Psychological Projection'. A theory in psychology in which the human ego defends itself against unconscious impulses or qualities (both positive and negative) by denying their existence in themselves while attributing them to others?