How Do You Spell HYPSILOID?
Pronunciation: [hˈɪpsɪlˌɔ͡ɪd] (IPA) 
Hypsiloid (pronounced /ˈhɪpsɪlɔɪd/) is a term used in geometry to describe a curve that is similar to a parabola. The word is spelled with a 'y' in the middle, which represents the /ɪ/ sound, and an 's' at the end, which represents the /z/ sound. The 'p' at the beginning of the word is silent, making the first syllable pronounced as /hɪp/. This word is derived from the Greek words 'hypsilo-' meaning tall or high and '-oid' meaning resembling or having the shape of.
