relative-permittivity

relative permittivity

noun
Electricity, permittivity.
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permittivity

[pur-mi-tiv-i-tee]
noun, plural permittivities.
Electricity. the ratio of the flux density produced by an electric field in a given dielectric to the flux density produced by that field in a vacuum.
Also called dielectric constant, relative permittivity, specific inductive capacity.


Origin:
1885–90; permit + -ive + -ity

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
permittivity (ˌpɜːmɪˈtɪvɪtɪ)
 
n , pl -ties
relative permittivity See also electric constant ε a measure of the response of a substance to an electric field, expressed as the ratio of its electric displacement to the applied field strength; measured in farads per metre

relative permittivity
 
n
εr, Also called: dielectric constant the ratio of the permittivity of a substance to that of free space

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American Heritage
Science Dictionary
permittivity   (pûr'mĭ-tĭv'ĭ-tē)  Pronunciation Key 
A measure of the ability of a material to resist the formation of an electric field within it, equal to the ratio between the electric flux density and the electric field strength generated by an electric charge in the material.
relative permittivity  
The ratio of the magnetic permittivity of a substance to the permittivity of a vacuum.
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