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modulus definition

modu·lus (mäj′ə ləs)

noun pl. moduli -·u·li′ (-lī′)

  1. Math.
    1. the absolute value of a complex number, computed by adding the squares of each part and taking the positive square root of the sum (i.e.: the modulus of a + bi is )
    2. a quantity which gives the same remainders when it is the divisor of two quantities
    3. the factor by which a logarithm to one base is multiplied to change it to a logarithm to another base
  2. Physics a quantity expressing the response of a sample of material to an external stimulus, as mechanical stress: the response is usually expressed as a fractional change in the physical quantity being affected

Etymology: ModL < L: see module

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

modulus Usage Examples

Preposition: of

  • elasticity: Below is a table showing the variation modulus of elasticity of metals in crystal in different directions.

Converse of object

  • calculate: At least two tests were carried out at each temperature interval and the mean frequency value used to calculate the elastic modulus.

Adjective modifier

  • flexural: PPX 7125 has a flexural modulus of 1,340 MPa and an instrumented impact strength of 37 Nm at -30 degC.

Modifies a noun

  • silicone: Fix it to the base unit by bedding the sink onto beads of low modulus silicone.

Noun used with modifier

  • secant: The elastic modulus is defined as a secant modulus at service load condition.
modulus usage examples (more)

The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.

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"modulus." Webster's New World College Dictionary. 2009

  • Your Dictionary. 4 July 2009
  • <www.yourdictionary.com/modulus>

APA Style

modulus. (2009). In Webster's New World College Dictionary

  • Retrieved July 4th, 2009, from www.yourdictionary.com/modulus

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