n. A bond of union; a bond; a tie.n. 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 adjectiven. In printing, a brace.n. In anatomy, a tendinous or ligamentous band uniting certain parts; a frenum.