con·fi·den·tial communication /ˌkän-fə-'den-chəl-/ n: a communication between parties to a confidential relation (as husband and wife, attorney and client, or doctor and patient) such that the recipient of the communication has a privilege exempting him or her from disclosing it as a witness – called also privileged communication;
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.