Vin·cu·lum n.; pl. L. Vincula E. Vinculums
  1. A bond of union; a tie.
  2. Math. 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 - 
  3. Anat. A band or bundle of fibers; a fraenum.
  4. Zool. A commissure uniting the two main tendons in the foot of certain birds.
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