Gneisoid or Gneissoid: How To spell?

The word Gneisoid is misspelled against Gneissoid, an adjective meaning "Resembling gneiss; having some of the characteristics of gneiss; -- applied to rocks of an intermediate character between granite and gneiss, or mica slate and gneiss."

--> Gneissoid has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings gnei & oid which should not be misspelled with single 'S'
Wrong Spelling:  gnei-s-oid 
Correct Spelling:  gnei-ss-oid 
Find more incorrect spellings of Gneissoid to spell right way.

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