vinculum

n. tie, bond; line appearing above two terms showing that they should be considered as one entity (Mathematics); ligaments which limit the movement of an organ (Anatomy)

A vinculum (pl. vincula) is a bond or tie, specifically:Vinculum (symbol), a mathematical symbol used for grouping. The line between the numerator and the denominator of a common fraction. (comics), a comic book title created by Luije Padrón. Self-published and released in 2007. Luije Padrón: Writer, Colors & Letters. Luis Ramos: Pencils.Vinculum (mapping), a symbol indicating that two land parcels are owned by one person. The symbol is shown spanning the common boundary, or across a road between the lots.Vinculum (ligament), a ligament that limits movementVinculum (Star Trek), The heart of a Borg ship
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(n.)
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.
  

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

(n.)
A bond of union; a tie.
  

(n.)
A band or bundle of fibers; a fraenum.
  

N
chain| bond| fetter; imprisonment (pl.)

vinculum
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