甲氨基 Traditional form: 甲氨基 Pinyin (reading): jiǎ'ānjī Definitions: methyalamino group Characters: 甲 - armor, shell; fingernails; 1st heavenly stem 氨 - ammonia 基 - foundation, base Traditional characters: 甲 - armor, shell; fingernails; 1st heavenly stem 氨 - ammonia 基 - foundation, base