n. 1) a group of separate businesses or business people joining together and cooperating to complete a project, work together to perform a contract or conduct an on-going business. For example, six companies, including Bechtel and Kaiser, joined together in a consortium to build Boulder (now Hoover) Dam, with each providing different expertise or components. 2) the marital relationship, particularly sexual intimacies, between husband and wife. Consortium arises in a lawsuit as a claim of "loss of consortium." Often it means that due to one spouse's injuries or emotional distress he/she cannot have sexual relations for a period of time or permanently, which is a loss to the mate for which he/she should be awarded damages. How loss of consortium is valued in money terms is a difficult question.