||Vin"cu*lum (?), n.; pl. L. Vincula (#), E. Vinculums (#). [L., from vincire, vinctum, to bind.] 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 - x + y.

3. (Anat.) A band or bundle of fibers; a frænum.

4. (Zoöl.) A commissure uniting the two main tendons in the foot of certain birds.

||Vin"cu*lum (?), n.; pl. L. Vincula (#), E. Vinculums (#). [L., from vincire, vinctum, to bind.] 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 - x + y.

3. (Anat.) A band or bundle of fibers; a frænum.

4. (Zoöl.) A commissure uniting the two main tendons in the foot of certain birds.

• (Mathematics) A horizontal line drawn or printed over the top of part of a calculation and serving the same purpose as parentheses (ie, indicating that this part of the calculation is to be done before other parts).
  
  Latin
• A bond, fetter; any instrument whereby anything is bound or tied up.