modulus (ˈmɒdjʊləs)  
—n , pl li  
1.  physics bulk modulus modulus of rigidity See Young's modulus a coefficient expressing a specified property of a specified substance 
2.  maths See absolute value the absolute value of a complex number 
3.  maths the number by which a logarithm to one base is multiplied to give the corresponding logarithm to another base 
4.  maths See also congruence an integer that can be divided exactly into the difference between two other integers: 7 is a modulus of 25 and 11 
[C16: from Latin, diminutive of modus measure] 
modulus (mŏj'ələs) Pronunciation Key
Plural moduli (mŏj'əlī')
