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admittance

[ad-mit-ns] /ædˈmɪt ns/
noun
1.
permission or right to enter:
admittance into the exhibit room.
2.
an act of admitting.
3.
actual entrance.
4.
Electricity. the measure of the ability of a circuit to conduct an alternating current, consisting of two components, conductance and susceptance; the reciprocal of impedance, expressed in mhos. Symbol: Y.
Origin
1585-1595
1585-95; admit + -ance
Related forms
readmittance, noun
Synonyms
1. access. See entrance1 .
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for readmittance

admittance

/ədˈmɪtəns/
noun
1.
the right or authority to enter
2.
the act of giving entrance
3.
(electrical engineering) the reciprocal of impedance, usually measured in siemens. It can be expressed as a complex quantity, the real part of which is the conductance and the imaginary part the susceptance y
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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Word Origin and History for readmittance

admittance

n.

1580s, "the action of admitting," formed in English from admit + -ance (if from Latin, it would have been *admittence; French uses accès in this sense). Used formerly in senses where admission now prevails. Admissure was used in this sense from mid-15c.

Online Etymology Dictionary, © 2010 Douglas Harper
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readmittance in Science
admittance
  (ād-mĭt'ns)   
A measure of the ability of a circuit or component to allow current flow when exposed to AC voltages (its AC conductance). It is equal to the reciprocal of the impedance of the circuit, just as conductivity is equal to the reciprocal of resistance, and is similarly measured in mhos.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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