1. 
   vectors
   vectors 1. Things physical; such as, forces which have size and direction. 2. Insects or animals which carry diseases from one animal or plant to another.
   Found op http://www.wordinfo.info/words/index/info/view_unit/3414/
   
   
2. 
   vectors
   Self-replicating DNA molecules that can be joined with DNA fragments to form recombinant DNA molecules.
   Found op http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookglossv.html
   
   
3. 
   vectors
   1) Flight paths
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/vectors/1
   
   

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