1. 
   interpenetration
   [n] - the action of penetrating between or among 2. [n] - mutual penetration
   Found op http://www.webdictionary.co.uk/definition.php?query=interpenetration
   
   
2. 
   Interpenetration
   In`ter·pen`e·tra'tion noun The act of penetrating between or within other substances; mutual penetration. Milman.
   Found op http://www.encyclo.co.uk/webster/I/82
   
   
3. 
   interpenetration
   permeation noun mutual penetration; diffusion of each through the other
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=interpenetration
   
   
4. 
   Interpenetration
   • (n.) The act of penetrating between or within other substances; mutual penetration.
   Found op http://thinkexist.com/dictionary/meaning/interpenetration/
   
   
5. 
   interpenetration
   [n] mutual penetration; diffusion of each through the other ; [n] the action of penetrating between or among...
   Found op http://www.oenb.at/dictionary/termini.jsp?EINTRAG_ID=1930
   
   
6. 
   interpenetration
   1) Incursion 2) Penetration
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/interpenetration/1
   
   

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