How Do You Spell CATHETERISER?
Pronunciation: [kˈaθɪtəɹˌa͡ɪzə] (IPA) 
The spelling of the word "catheteriser" can seem confusing at first glance. It is spelled with two S's, rather than one like the American English version "catheterizer". The reason for this spelling difference lies in the pronunciation of the word. "Catheteriser" is pronounced with a soft "s" sound in the second syllable. In IPA phonetic transcription, this sound is represented by the symbol ɪz, which explains why the word is spelled with two S's instead of one.
