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echinate
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echinoderm
echinoid
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echo boomer
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ecesis
e·ce·sis [ i sssiss ]


noun 
Definition:
 
successful adaptation: the successful establishment of a plant or animal species in a new environment
[Early 20th century. < Greek oikēsis "an inhabiting" < oikos "house"]
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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