1. 
   haptotropism
   <biology> An orientation response of an organism to stimulation by touch. ... (09 Oct 1997) ...
   Found op http://www.mondofacto.com/facts/dictionary?haptotropism
   
   
2. 
   haptotropism
   haptotropism 1. An orientation response to a touch or contact stimulus. 2. The phenomenon whereby plant organs, as the tendrils of climbing plants, exhibit tropic movements in response to the stimulus of touch.
   Found op http://www.wordinfo.info/words/index/info/view_unit/954/2
   
   

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