Doser or Dosser: How To spell?
The word Doser is misspelled against Dosser, a noun meaning "A hanging tapestry; a dorsal."
Dosser has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings do & er which should not be misspelled with single 'S'
Wrong Spelling:  do-s-er  Correct Spelling:  do-ss-er 
Find more incorrect spellings of Dosser to spell right way.