1. 
   Orthophony
   Or·thoph'o·ny noun [ Ortho- + Greek ... voice.] The art of correct articulation; voice training.
   Found op http://www.encyclo.co.uk/webster/O/35
   
   
2. 
   Orthophony
   • (n.) The art of correct articulation; voice training.
   Found op http://thinkexist.com/dictionary/meaning/orthophony/
   
   
3. 
   orthophony
   orthophony 1. The art of correct speaking or enunciation. 2. The accurate and correct production of the various sound components during speech.
   Found op http://www.wordinfo.info/words/index/info/view_unit/1515/7
   
   

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