Vinculum \Vin"cu*lum\, n.; pl. L. {Vincula}, E. {Vinculums}.
[L., from vincire, vinctum, to bind.]
1. A bond of union; a tie.
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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
x^{2} + y^{2} - vinc{x + y}.
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3. (Anat.) A band or bundle of fibers; a fraenum.
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4. (Zool.) A commissure uniting the two main tendons in the
foot of certain birds.
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