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[pur-mi-tiv-i-tee] /ˌpɜr mɪˈtɪv ɪ ti/
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 of permittivity
1885-90; permit1 + -ive + -ity Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for permittivity


noun (pl) -ties
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
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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permittivity in Science
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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