1. the process or fact of entering or being allowed to enter. 2. (Physics) a measure of electrical conduction, numerically equal to the reciprocal of the impedance
The reciprocal of electrical impedance; admittance is expressed in the same units as conductance (mhos) and impedance in the same units as resistance (ohms)
Licence Shakespeare says "Sir John, you are a gentleman of excellent breeding, of great admittance" - i e , to whom great freedom is allowed (Merry Wives, ii 2) The allusion is to an obsolete custom called admission, by which a prince avowed another prince to be under his protection Maximilian, Emperor of Mexico, was the "admittant" of the Emperor Napoleon III
The reciprocal of the impedance The admittance is the complex ratio of the current flowing through divided by the voltage across a device, circuit element, or network
Admittance is the act of entering a place or institution or the right to enter it. We had not been able to gain admittance to the flat. = admission. permission to enter a place admission (5)