Definition of modulus
plural moduliplay \-ˌlī, -ˌlē\
1 a : the factor by which a logarithm of a number to one base is multiplied to obtain the logarithm of the number to a new base b : absolute value 2 c (1) : the number (as a positive integer) or other mathematical entity (as a polynomial) in a congruence that divides the difference of the two congruent members without leaving a remainder — compare residue b (2) : the number of different numbers used in a system of modular arithmetic
2 : a constant or coefficient that expresses usually numerically the degree to which a body or substance possesses a particular property (as elasticity)
Origin of modulus
New Latin, from Latin, small measure
First Known Use: 1753
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