An alteration of cystine.
cysteine (countable and uncountable, plural cysteines)
Try searching for words with the letters CYSTEINE, words with the phrase CYSTEINE, words starting with the letters CYSTEINE, or words ending in the letters CYSTEINE.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
TUTT, MKJTUU, SXVXI, LKMNBO, FSXXZKJO, SSOIS,