modulus

American  

[moj-uh-luhs] / ˈmɒdʒ ə ləs /

noun

moduli plural

1. Physics. a coefficient pertaining to a physical property.

2. Mathematics.

   1. that number by which the logarithms in one system are multiplied to yield the logarithms in another.

   2. a quantity by which two given quantities can be divided to yield the same remainders.

   3. absolute value.

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modulus British  

/ ˈmɒdjʊləs /

noun

1. physics a coefficient expressing a specified property of a specified substance See bulk modulus modulus of rigidity Young's modulus

2. maths the absolute value of a complex number See absolute value

3. maths the number by which a logarithm to one base is multiplied to give the corresponding logarithm to another base

4. maths an integer that can be divided exactly into the difference between two other integers See also congruence

   7 is a modulus of 25 and 11

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modulus Scientific  

/ mŏj′ə-ləs /

moduli plural

1. A number by which two given numbers can be divided and produce the same remainder.

2. The numerical length of the vector that represents a complex number. For a complex number a + bi, the modulus is the square root of (a ² + b ²).

3. The number by which a logarithm to one base must be multiplied to obtain the corresponding logarithm to another base.

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Etymology

Origin of modulus

1555–65; < Latin: a unit of measure; see mode ¹, -ule

Example Sentences

The nanotubes also had an ultra-low elastic modulus of about 20-30 GPa.

From Science Daily • Feb. 2, 2024

So the Tensei modulus strength of the shaft is 130 million pounds per square inch.

From Golf Digest • Jun. 5, 2018

The bulk modulus for gasoline is B = 1.00×109 N/m2 .

From Textbooks • Aug. 12, 2015

The bulk modulus of granite is greater than its shear modulus.

From Textbooks • Aug. 12, 2015

In general there is no simple relation between the Young’s moduluses and Poisson’s ratios and rigidities for assigned directions and the modulus of compression.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" by Various