1. the minimum number of members required to be present at a meeting to make the proceedings valid
Usage: formal; parliamentary procedure

Examples

• The board meeting was postponed because they lacked a quorum.
• We need at least five members present to have a quorum.
• The committee cannot vote without a quorum of seven people.
• They waited an hour for more members to arrive and establish a quorum.
• The constitution requires a quorum of two-thirds of the senators.
• Without a quorum, the student council meeting was adjourned.