1. 
   anechoic
   [adj] - not having or producing echoes
   Found op http://www.webdictionary.co.uk/definition.php?query=anechoic
   
   
2. 
   Anechoic
   Without echo. See also: Anechoic Chamber, Reverberant Sound Field.
   Found op http://www.diracdelta.co.uk/science/source/a/n/anechoic/source.html
   
   
3. 
   anechoic
   The property of appearing echo-free or without echoes on a sonographic image; a clear cyst appears anechoic. ... See: transonic. ... Synonym: echo-free. ... Origin: G. An-priv. + echo + ic ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?anechoic
   
   
4. 
   anechoic
   adjective not having or producing echoes; sound-absorbent; `an anechoic chamber`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=anechoic
   
   
5. 
   anechoic
   (an-ә-ko´ik) without echoes, such as a room used for hearing tests. sonolucent.
   Found op http://www.encyclo.co.uk/local/21001
   
   
6. 
   anechoic
   anechoic Free from echoes; completely absorbing sound waves or radar signals.
   Found op http://www.wordinfo.info/words/index/info/view_unit/694/
   
   
7. 
   anechoic
   Type: Term Pronunciation: an′ĕ-kō′ik Definitions: 1. The property of being echo-free or appearing without echoes on a sonographic image; a cyst filled with clear fluid appears anechoic. Synonyms: echo-free See: transonic
   Found op http://www.medilexicon.com/medicaldictionary.php?t=3591
   
   
8. 
   anechoic
   1) Nonresonant 2) Not having or producing echoes 3) Unreverberant
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/anechoic/1
   
   

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