1. 
   Congeners
   refers to species belonging to the same genus
   Found op http://www.runet.edu/~swoodwar/CLASSES/GEOG235/glossary.html
   
   
2. 
   Congeners
   a group of species that belong to the same genus.
   Found op http://www.coralrealm.com/viewpage.html?page=/glossary.html
   
   
3. 
   congeners
   a group of species that belong to the same genus
   Found op http://www.seafriends.org.nz/books/glossary.htm
   
   
4. 
   Congeners
   Chemical compounds produced during fermentation and maturation. Congeners include esters, acids, aldehydes and higher alcohols. Strictly speaking they are impurities, but they give whiskey its flavour. Their presence in the final spirit must be carefully judged; too many would make it undrinkable.
   Found op http://www.clanmacdougall.net/scotch1.html
   
   
5. 
   Congeners
   Elements with similar properties, found in one column of the periodic table.
   Found op http://www.chemistry-dictionary.com/definition/congeners.php
   
   
6. 
   Congeners
   Chemical compounds produced during fermentation and maturation. Congeners include esters, aldehydes, acids and higher alcohols. These are impurities in the whisky, but they give its flavour. Too much or too little of these congeners would make it un-drinkable.
   Found op http://www.whiskiesofscotland.com/glossary
   
   
7. 
   Congeners
   Chemical compounds, impurities formed during fermentation. It is said that these proffer the majority of characteristics present in whisk(e)y.
   Found op http://www.masterofmalt.com/whisky-glossary/
   
   
8. 
   Congeners
   Chemical compounds produced during whisky making that give the whisky character. They include esters, acids, aldehydes, and higher alcohols.
   Found op http://www.sohowhisky.com/whisky_glossary.html
   
   
9. 
   congeners
   1) Refers to species belonging to the same genus
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/congeners/1
   
   

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