sulphonephthalein
Syllables
sul-phoneph-tha-lein
Pronunciation
/sʌlfoʊnɛfˈθæliːn/
Stress
0010
Morphemes
sulfo- + nephth- + -alein
Sulphonephthalein is a four-syllable noun with primary stress on the third syllable. Syllabification follows standard English rules, with the unusual 'phth' cluster treated as a single unit. It's a chemical dye name derived from Latin and Greek roots.
Definitions
- 1
A reddish-orange dye used as an indicator, especially in acid-base titrations. It is also used in biological staining.
“Sulphonephthalein is commonly used in laboratory settings to determine pH levels.”
Stress pattern
Primary stress falls on the third syllable ('tha'). The first two and last syllables are unstressed.
Syllables
sul — Open syllable, short vowel.. phoneph — Closed syllable, diphthong, complex consonant cluster.. tha — Open syllable, short vowel.. lein — Closed syllable, long vowel.
Word Parts
Vowel-Coda Rule
Syllables generally end in vowel sounds.
Consonant-Coda Rule
Syllables can end in consonant sounds.
Consonant Cluster Rule
Complex consonant clusters are treated as a single unit when determining syllable boundaries.
- The 'phth' consonant cluster is relatively rare and requires careful consideration.
- The diphthongs 'ei' and 'ou' influence vowel length and pronunciation.
Nearby Words
17 wordsTrending in English (US)
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