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relative permittivity

noun
1.
Electricity, permittivity.

permittivity

[pur-mi-tiv-i-tee] /ˌpɜr mɪˈtɪv ɪ ti/
noun, plural permittivities.
1.
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
1885-1890
1885-90; permit + -ive + -ity
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for relative-permittivity

permittivity

/ˌpɜːmɪˈtɪvɪtɪ/
noun (pl) -ties
1.
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 ε See also relative permittivity, electric constant

relative permittivity

noun
1.
the ratio of the permittivity of a substance to that of free space εr Also called dielectric constant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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relative-permittivity in Science
permittivity
  (pûr'mĭ-tĭv'ĭ-tē)   
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for relative-permittivity

permittivity

constant of proportionality that relates the electric field in a material to the electric displacement in that material. It characterizes the tendency of the atomic charge in an insulating material to distort in the presence of an electric field. The larger the tendency for charge distortion (also called electric polarization), the larger the value of the permittivity.

Learn more about permittivity with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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