from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An electronically recorded graphic representation of a person's voice, uniquely characteristic of the individual speaker.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A digitally recorded sample of a person's voice to be used as a means of identification.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. biometric identification by electronically recording and graphically representing a person's voice
voice + print, analogous to fingerprint. (Wiktionary)