Risoid or Rissoid: How To spell?

The word Risoid is misspelled against Rissoid, a noun meaning "Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidae, found both in fresh and salt water."

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

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