​DOMESTIC RELATIONS, a term used to express the legal relations subsisting between the various units that comprise the family or domestic group. Those units which go to build up the domestic structure of modern society are parent, child, husband, wife, master and servant. The law which deals with the various relations subsisting between them is made up largely of the law of agency, of contract and of tort. See Husband and Wife; Master and Servant; Children, Law relating to; Infant.