1. 
   Endothermicity
   The absorption of heat by a system as the process occurs.
   Found op http://home.nas.net/~dbc/cic_hamilton/dictionary/a.html
   
   
2. 
   Endothermicity
   The absorption of heat by a system as the process occurs.
   Found op http://www.allchemicals.info/index/action/detail/keyword/E/id/1059561303.ph
   
   
3. 
   Endothermicity
   The absorption of heat by a system as the process occurs.
   Found op http://www.chemistry-dictionary.com/definition/endothermicity.php
   
   
4. 
   endothermicity
   1) The absorption of heat by a system as the process occurs
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/endothermicity/1
   
   

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