quorum/ˈkwɔ:rəm; `kwɔrəm/ n(usu sing 通常作单数) minimum number of people who must be present at a meeting (of a committee, etc) before it can proceed and its decisions, etc can be considered valid （会议的）法定人数 have/form a quorum 具备[构成]法定人数.
牛津英汉双解词典