半胱氨酸 bàn guāng ān suān

DEFINITIONS

  1. cysteine (Cys), an amino acid
  2. mercaptoethyl amine

CHARACTERS

半 bàn
HSK 3
half
胱 guāng bladder
氨 ān ammonia; hydrogen nitride
酸 suān
HSK 4
tart, sour; acid; stiff; spoiled