Ganister or Gannister: How To spell?
The word Ganister is misspelled against Gannister, a noun meaning "A refractory material consisting of crushed or ground siliceous stone, mixed with fire clay; -- used for lining Bessemer converters; also used for macadamizing roads."
Gannister has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings ga & ister which should not be misspelled with single 'N'
Wrong Spelling:  ga-n-ister  Correct Spelling:  ga-nn-ister 
Find more wrongly spelled words of Gannister to spell it well.