In zoology, the quadrate bone: more fully called os quadratum.(noun)
In medieval music, a breve.(noun)
The Century Dictionary (Public Domain)
Use "quadratum" in a sentence
"Agmen quadratum was a formation that saw an army of sufficient strength spread in columns across a wide front, ready in an instant to wheel and take up battle stations."
"The Romans, she noted, based many buildings "on the geometry of the square and its diagonal, the ad quadratum.""
"The street is bordered on either side by walls made of opus quadratum (regular rectangular courses), made of ashlars with drafted edges (see Colonnaded Street, July 10-13, 2006)."