1. 
   biotroph
   An organism that derives nutrients from the living tissues of another organism (its host).
   Found op http://ppathw3.cals.cornell.edu/glossary/Defs_B.htm
   
   
2. 
   Biotroph
   Obligate parasite i.e. an organism which is entirely dependent upon another living organism as a source of nutrients.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   biotroph
   <biology> An organism which cannot survive or reproduce unless it is on another organism. For example: fleas. ... (19 Jan 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?biotroph
   
   
4. 
   Biotroph
   an organism that can live and multiply only on another living organism.
   Found op http://www.encyclo.co.uk/local/21006
   
   
5. 
   biotroph
   biotroph, biotrophic, biotrophy 1. A reference to a parasite deriving nutrients from the tissues of a living host. 2. An organism that can live and multiply only on another living organism; such as, parasitic or symbiotic bacteria and fungi, carnivores, herbivores, etc.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2819/30
   
   

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