Abscisas or Abscissas: How To spell?
The word Abscisas is misspelled against Abscissas, which is plural of "Abscissa"
Abscissas has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings absci & as which should not be misspelled with single 'S'
Wrong Spelling:  absci-s-as  Correct Spelling:  absci-ss-as 
Find more wrongly spelled words of Abscissas to spell it well.