vinculum

A bar drawn over two or more algebraic terms to indicate that they are to be treated as a single term.

A bandlike structure, such as a ligament.

A bond or tie.

A bond of union; a bond; a tie.

In algebra, a character in the form of a stroke or brace drawn over a quantity when it consists of several terms, in order to connect them together as one quantity and show that they are to be multiplied or divided, etc., together: thus, , indicates that the sum of a and b is to be multiplied by c; whereas the expression without this character would indicate simply that b is to be multiplied by c, and the product added to adjective

In printing, a brace.

In anatomy, a tendinous or ligamentous band uniting certain parts; a frenum.

A bond of union; a tie.

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.

A band or bundle of fibers; a frænum.