暗煅 Traditional form: 暗煅 Pinyin (reading): ànduàn Definitions: sealed pot calcination (TCM) Characters: 暗 - dark, gloomy; obscure; secret, covert 煅 - discipline; to forge metal; to hone a skill Traditional characters: 暗 - dark, gloomy; obscure; secret, covert 煅 - discipline; to forge metal; to hone a skill