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Definition of Vinculum:

  1. A band or bundle of fibers; a fraenum.
  2. A bond of union; a tie.
  3. A commissure uniting the two main tendons in the foot of certain birds.
  4. A straight, horizontal mark placed over two or more members of a compound quantity, which are to be subjected to the same operation, as in the expression x2 + y2 - x + y.


ligature, connect, yoke, nexus.

Usage examples:

  • Mr. Bowditch, too, refuses us; so fascinating is the vinculum of the dulce natale solum.

    - "Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson", Thomas Jefferson.