A quorum is the minimum number of members of a deliberative assembly (a body that uses parliamentary procedure, such as a legislature) necessary to conduct the business of that group. According to Robert's Rules of Order Newly Revised, Tenth Edition, the "requirement for a quorum is protection against totally unrepresentative action in the name of the body by an unduly small number of persons."

The term quorum is from a Middle English wording of the commission formerly issued to justices of the peace, derived from Latin quorum, "of whom", genitive plural of qui = "who". As a result, quora as plural of quorum is not a valid Latin formation.

Read more about Quorum:  Number Constituting A Quorum, Determination of A Quorum and Actions That May Be Taken in The Absence of A Quorum, Call of The House (compelled Attendance), Quorum-busting, Disappearing Quorum, Online Communities