Ameter or Ammeter: How To spell?
The word Ameter is misspelled against Ammeter, a noun meaning "A contraction of amperometer or amperemeter."
Ammeter has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings a & eter which should not be misspelled with single 'M'
Wrong Spelling:  a-m-eter  Correct Spelling:  a-mm-eter 
Explore spell check of Ammeter to spell without errors.