Word: sulfonephthalein
Part of speech: Noun
Syllables: sul
fo
neph
tha
lein
Definition: Any of many sulfonic acids derived from phthaleins, some of which are important acid-base indicators.
Morphemes:
Affix: sulfone
Language: en
PoS: Noun
Meaning: Any of a class of organic compounds that have a sulfonyl functional group attached to two carbon atoms; drugs of this structure have been used to treat leprosy.
Affix: phthalein
Language: en
PoS: Noun
Meaning: any of a range of lactones formed by the reaction of phenols with phthalic anhydride