1. 
   Apsides
   Ap'si·des (ăp'sĭ*dēz) noun plural See Apsis .
   Found op http://www.encyclo.co.uk/webster/A/111
   
   
2. 
   Apsides
   • (n. pl.) See Apsis. • (pl. ) of Apsis
   Found op http://thinkexist.com/dictionary/meaning/apsides/
   
   
3. 
   apsides
   apsides (ăp"sidēz') : see apsis.
   Found op http://www.infoplease.com/ce6/sci/A0910352.html
   
   

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