Words with Suffix “--phthalein” in English (US)

Resorcinolphthalein is a seven-syllable noun with primary stress on the third syllable from the end. Syllabification follows standard English rules based on vowel-consonant patterns and consonant cluster grouping. The word's morphemic structure reveals its Latin and Greek origins.

Thymolsulphonephthalein is a compound chemical noun syllabified as thy-mol-sul-phone-phtha-lein using maximal onset except where illegal clusters force splits; primary stress falls on phtha with secondary stress on thy and sul, and the IPA is /ˌθaɪmɑːlˌsʌlfoʊnˈθeɪliːn/.