Xanthuria is a relatively rare word that is spelt x-a-n-t-h-u-r-i-a. The phonetic transcription of this word is /zænˈθjʊrɪə/. The opening sound of the word is /z/, followed by the vowel sound /æ/. The next combination of letters /n-t-h/ creates the voiced dental fricative /ð/, and /j/ producing the sound /j/ (as in "yes"). Finally, /ʊr/ is pronounced as /ʊr/, which creates the ending sound of the word. Despite its fairly complicated spelling, using IPA phonetic transcription makes it easier for people to understand the word's pronunciation more accurately.
Xanthinuria.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.