Quorum meaning

kwôrəm
The definition of a quorum is the minimum number of people needed at a meeting to conduct business.

An example of a quorum is having four of the seven committee members present in order to pass a motion at a committee meeting.

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The minimal number of officers and members of a committee or organization, usually a majority, who must be present for valid transaction of business.
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The minimal density of bacterial cells that results in altered gene expression in a population of bacteria.
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The minimum number of members required to be present at an assembly or meeting before it can validly proceed to transact business.
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The number of persons who must be present in a group for official action to be taken, e.g., a “quorum” of the board of directors must be present in order to take a vote; the number of individuals constituting a quorum may vary from body to body.
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(historical) The number of justices of the peace required to be present at sessions of English courts.
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The minimum number of members required for a group to officially conduct business and to cast votes, often but not necessarily a majority or supermajority.

We can discuss the issue tonight, but cannot vote until we have a quorum.

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A select group.
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The minimal density of bacterial cells that results in altered gene expression in a population of bacteria.
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A select group or company.
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The smallest number of people that must vote (either in person or by proxy) in shareholder meetings, boards of directors meetings, legislative meetings, or other committee and organization meetings. If a quorum isn’t reached, then the results of the voting are not valid.
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A selected body of persons.
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Origin of quorum

  • Middle English quorum of justices of the peace from Latin quōrum of whom (from the wording of a commission naming certain persons as members of a body) genitive pl. of quī who kwo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin quōrum, genitive plural form of quÄ« (“who, which"), used as standard wording in written commissions.

    From Wiktionary