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echolocation
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ecoefficiency
ec·o·ef·fi·cien·cy


noun 
Definition:
 
manufacturing products without environment harm: the ability to manufacture goods efficiently and at competitive prices without harming the environment

ec·o-ef·fi·cient adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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