Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Dream to Eijkman, Christiaan

Echo

sound

Echo, sound reflected or reverberated from a distant surface, with at least a 0.1-sec time lag, allowing the reflection to be distinct from the original sound; or, in computer technology, a character received from the keyboard and fed back to the printer or cathode ray tube for display.

Johann Eck [next] [back] Echo

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