XLR

A 3-pin male/female connector originally developed by Canon that is commonly used to carry balanced analog audio signals for microphones. Many audio cards, like Aardvark`s Q-10 and Edirol`s USB audio interfaces such as the new UA-1000 have the XLR connection directly on the front panel for ease of use.
Found on http://www.musiconmypc.co.uk/art_glossary.php

XLR

A type of connector for sound equipment. The best microphones use these rather than jacks. Now becoming more common on all kinds of sound equipment. Mics which require phantom powering (qv) must have XLR connectors: one terminal carries the signal, one is a shield, and the third carries the phantom power current.
Found on http://www.encyclo.co.uk/local/21207

XLR

One of several varieties of sound connectors having three or more conductors plus an outer shell which shields the connectors and locks the connectors into place. (Sound)
Found on http://www.filmland.com/glossary/Dictionary.html#A

XLR

A type of connector for sound equipment. Nowadays almost all but the very cheapest microphones use these rather than jacks. Now becoming more common on all kinds of sound equipment. Mics which require phantom powering (qv) must have XLR connectors: one terminal carries the signal, one is a shield, and the third carries the phantom power current.
Found on http://www.britishtheatreguide.info/otherresources/glossary/glosswz.htm

XLR

This term describes a variety of audio connectors that use 3 or more conductors encased in an outer shield.
Found on http://www.songstuff.com/glossary/X
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