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compliance of the middle ear

a measure of the transmission of mechanical energy through a structure (for example, sound through the middle ear).
Synonym(s): admittance


1. Total opposition to flow. In electricity, when flow is steady, impedance is simply the resistance, for example, the driving pressure per unit flow; when flow is changing, impedance also includes the factors that oppose changes in flow. Thus, deviations of impedance, from simple ohmic resistance because of the effects of capacitance and inductance, become more important in alternating current as the frequency of oscillations increases. In fluid analogies (for example, pulsatile flow of blood, to-and-fro flow of respiratory gas), impedance depends not only on viscous resistance but also on compressibility, compliance, inertance, and the frequency of imposed oscillations.
2. Resistance of an acoustic system to being set in motion.
Farlex Partner Medical Dictionary © Farlex 2012


(ăd-mit′ăns) [L. admittere, to send to, let go]
In electronics, the ratio of the current to the voltage.
Medical Dictionary, © 2009 Farlex and Partners
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<![CDATA[ it would seem that American Jews, whose doctors once could not gain admittance privileges at prestigious hospitals, who could not gain admittance into alumni and fraternal societies or country clubs, never have had it better.
After a recent report showed that some University of Texas at Austin applicants received help securing admittance over the admissions office's objections, conservative activists are calling Texans at home and asking them to take action.
During the time of admittance and Medical Assessment Unit I was seen by 10 doctors and nurses who were absolutely fantastic.
STAFF at Birmingham St Mary's Hospice gathered yesterday to mark the 35th anniversary of the first patient admittance on March 5, 1979.
Prize: Winner: 2 x tickets giving admittance to The Edible Garden Show (Alexandra Palace, March 28-30, 2014), plus 1 Heavy Duty Steel Fruit Cage delivered to winner's home within 28 days of competition closing date.