In electrical engineering and acoustics, immittance is a concept combining the impedance and admittance of a system or circuit. The term immittance was invented by Bode. It is sometimes convenient to use immittance to refer to a complex number which may be either the impedance (ratio of voltage to current in electrical circuits, or sound pressure ... Found on http://en.wikipedia.org/wiki/Immittance
In audiology, a general term describing measurements made of tympanic membrane impedance, compliance, or admittance. ... Origin: L. Immitto, to send in ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973