Definition of vinculum in English:

vinculum

noun

  • 1Anatomy
    A connecting band of tissue, such as that attaching a flexor tendon to the bone of a finger or toe.

    • ‘This supply comes through a series of transverse vincula, which function as passageways for blood vessels to reach the tendon.’
    • ‘In type 2 injuries, the tendon retracts to the PIP level leaving the long vincula intact and preserving a portion of the nutritional blood supply from the sheath.’
    • ‘It flexes the other three digits because it is attached to the flexor digitorum longus tendon by a vinculum along the distal portion of the tarsometatarsus.’
    • ‘The vinculum tendon emerges from the distal end of the humerus and follows the posterior margin of the wing, attaching at the distal end of digit 2.’
    • ‘The most distinctive traits of broadbills are their foot tendons (the flexor hallueis and the flexor profundus tendons are joined by a vinculum band).’
  • 2Mathematics
    A horizontal line drawn over a group of terms in a mathematical expression to indicate that they are to be operated on as a single entity by the preceding or following operator.

    • ‘For notational convenience the negative digits are usually written with a vinculum, or overbar, instead of a prefixed minus sign.’

Origin

Mid 17th century (in the sense ‘bond, tie’): from Latin, literally bond, from vincire bind. The term has been used in anatomy since the mid 19th century.

Pronunciation:

vinculum

/ˈvɪŋkjʊləm/