The word "euophthalmin" is spelled with the IPA phonetic transcription [juːɒfθælmɪn]. The first syllable is pronounced as "yoo-o," and the second syllable is pronounced as "of-thal." The third syllable is pronounced as "min." This word is not commonly used, but it is a type of eye medication. Its spelling may be challenging for many because it contains less common letter combinations such as "phth" and "mn." However, with proper pronunciation guidance, the spelling of the word can be easier to remember.
Euphthalmin.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.