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cypsela
Cyrenaic
Cyrenaica
Cyrene
Cyrillic
cyst
cyst-
cystectomy
cysteine
cystic
cystic duct
cystic fibrosis
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cystine
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cysteine
cys·te·ine [ sís tn, sístee n ]


noun 
Definition:
 
sulfur-containing amino acid: a sulfur-containing amino acid that is converted to cystine during metabolism. C3H7NO2S
[Late 19th century. <cystine + -eine, variant of -ein]
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