Cystine
7 lettersnounrareUpdated June 2026
Definition
A crystalline amino acid present in many proteins, particularly keratin, first isolated from bladder stones.
“High levels of cystine in the urine can lead to kidney stone formation in people with the inherited condition cystinuria.”
Pronunciation
Syllables
cys·tine
Related Words
Synonyms
Word Game Tips
Wordle
Contains Y and ends in INE. The CYST opening is distinctive and shared with words like CYSTIC. No repeated letters.
Scrabble
Y (4 pts) adds value. Biochemistry term worth knowing for Scrabble. The INE ending hooks to CYSTINES with an S for continued play.
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