vinculums

/ˈvɪŋkjələmz/
noun
  1. A bond or connection between people or things.
    • The treaty served as a vinculum linking the neighboring countries.
    • The shared history created a strong vinculum between the two communities.
    • Their friendship was a vinculum that held the group together through difficult times.
  2. In mathematics, a horizontal line placed over a group of terms to show that they are to be treated as a unit, as in a fraction or under a radical sign.
    • The fraction 3/4 can be written with a vinculum separating the numerator and denominator.
    • When simplifying the radical, remember that the vinculum groups the terms underneath it.
    • In the expression √(x + y), the vinculum covers both x and y.
Antonyms
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