Quorum Definition

The number of justices of the peace required to be present at sessions of English courts.
Webster's New World
The minimum number of members required to be present at an assembly or meeting before it can validly proceed to transact business.
Webster's New World
A select group or company.
Webster's New World
The minimal density of bacterial cells that results in altered gene expression in a population of bacteria.
American Heritage Medicine
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.
Webster's New World Law

Other Word Forms of Quorum


quora, quorums

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

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