vinculum

You might expect 10 ÷ 5 is the same as 10/5 is the same as 10 over a 5 with a vinculum between them, but each has its own eccentricities.

From Slate ● Mar. 12, 2013

But it gets really tricky when people assume that a slash replaces a vinculum.

From Slate ● Mar. 12, 2013

A vinculum usually has little to do with division; it’s used in fractions and to group together numbers just as parentheses are.

From Slate ● Mar. 12, 2013

In the environment of liquids and nasals a parasitic vowel sometimes develops; as,— vinculum for earlier vinclum.

From New Latin Grammar by Charles E. (Charles Edwin) Bennett

The great trouble with Mr. Darwin's vinculum is, that its weakest links are precisely where the strongest should be found, and vice versa.

From Life: Its True Genesis by R. W. Wright

Note the phrases et is, et ea, etc., in the sense: and that too; as,— vincula, et ea sempiterna, imprisonment, and that too permanently.

From New Latin Grammar by Charles E. (Charles Edwin) Bennett

And the King Henry came home to England before harvest, after the mass of St. Peter "ad vincula".

From The Anglo-Saxon Chronicle by J. H. (James Henry) Ingram

The transverse vincula are often at right angles to the principal branches, and the meshes, where formed, are often long and rectangular.

From The North American Slime-Moulds A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species by Thomas H. (Thomas Huston) MacBride

The regular Latin phrase for imprisonment is "in vincula conicere": Pauly-Wissowa, s.v. "carcer."

From The Religious Experience of the Roman People From the Earliest Times to the Age of Augustus by W. Warde Fowler

His body was buried first at All Hallows, Barking, and then removed to St. Peter’s ad vincula in the Tower, where it lies beside that of Sir Thomas More.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" by Various