VINCULA
Noun
vincula
plural of vinculum
Source: Wiktionary
VINCULUM
Vin"cu*lum, n.; pl. L. Vincula, E. Vinculums. Etym: [L., from
vincire, vinctum, to bind.]
1. A bond of union; a tie.
2. (Math.)
Definition: 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.)
Definition: A band or bundle of fibers; a frænum.
4. (Zoöl.)
Definition: A commissure uniting the two main tendons in the foot of
certain birds.
Source: Webster’s Unabridged Dictionary 1913 Edition