Medical Dictionary
cysteinyl
noun cys·tei·nyl \ˈsis-tē-ˌnil, sis-ˈtē-ə-\
Medical Definition of CYSTEINYL
: the amino acid radical or residue HSCH2CH(NH2)CO− of cysteine—abbreviation Cys
Seen & Heard
What made you want to look up cysteinyl? Please tell us where you read or heard it (including the quote, if possible).