an integer that can be divided without remainder into the difference between two other integers
"2 is a modulus of 5 and 9"
the absolute value of a complex number
"When calculating the stress intensity factor for that crack, we need to use the modulus of the applied load's complex representation to determine its true magnitude."
(physics) a coefficient that expresses how much of a specified property is possessed by a specified substance
"The engineer calculated the steel's modulus to determine exactly how much elastic energy it could store before bending."
The base with respect to which a congruence is computed.
"In her number theory homework, she had to determine the smallest positive residue of 17 when the modulus was 5."