Swimeret or Swimmeret: How To spell?
The word Swimeret is misspelled against Swimmeret, a noun meaning "One of a series of flat, fringed, and usually bilobed, appendages, of which several pairs occur on the abdominal somites of many crustaceans. They are used as fins in swimming."
Swimmeret has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings swi & eret which should not be misspelled with single 'M'
Wrong Spelling:  swi-m-eret  Correct Spelling:  swi-mm-eret 
Find more wrongly spelled words of Swimmeret to spell it well.