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echoless

 - 4 dictionary results

ech⋅o

  [ek-oh] noun, plural ech⋅oes, verb, ech⋅oed, ech⋅o⋅ing.
Use echoless in a Sentence
–noun
1. a repetition of sound produced by the reflection of sound waves from a wall, mountain, or other obstructing surface.
2. a sound heard again near its source after being reflected.
3. any repetition or close imitation, as of the ideas or opinions of another.
4. a person who reflects or imitates another.
5. a sympathetic or identical response, as to sentiments expressed.
6. a lingering trace or effect.
7. (initial capital letter) Classical Mythology. a mountain nymph who pined away for love of the beautiful youth Narcissus until only her voice remained.
8. Cards. the play of a high card and then a low card in the suit led by one's partner as a signal to continue leading the suit, as in bridge, or to lead a trump, as in whist.
9. Electronics. the reflection of a radio wave, as in radar or the like.
10. (initial capital letter) U.S. Aerospace. one of an early series of inflatable passive communications satellites.
11. a word used in communications to represent the letter E.
–verb (used without object)
12. to emit an echo; resound with an echo: The hall echoed with cheers.
13. to be repeated by or as by an echo: Shouts echoed through the street.
–verb (used with object)
14. to repeat by or as by an echo; emit an echo of: The hall echoes the faintest sounds.
15. to repeat or imitate the words, sentiments, etc., of (a person).
16. to repeat or imitate (words, sentiments, etc.).
Origin:
1300–50; ME ecco < L ēchō < Gk, akin to ēch sound

Related forms:
ech⋅o⋅er, noun
ech⋅o⋅less, adjective

Synonyms:
12, 13. ring, reverberate.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Word Origin & History

echo 
1340, from L. echo, from Gk. echo, personified as a mountain nymph, from ekhe "sound." The verb is from 1559; echolocation is from 1944. ECHO virus (1955) is an acronym for enteric cytopathogenic human orphan, "orphan" because when discovered they were not known to cause any disease.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: echo
Function: abbreviation
echocardiogram; echocardiography
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
echo   (ěk'ō)  Pronunciation Key 

  1. A repeated sound that is caused by the reflection of sound waves from a surface. The sound is heard more than once because of the time difference between the initial production of the sound waves and their return from the reflecting surface.

  2. A wave that carries a signal and is reflected. Echoes of radio signals (carried by electromagnetic waves) are used in radar to detect the location or velocity of distant objects.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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