甲二醇 Traditional form: 甲二醇 Pinyin (reading): jiǎ'èrchún Definitions: methylene glycol Characters: 甲 - armor, shell; fingernails; 1st heavenly stem 二 - two; twice 醇 - rich, pure, as good as wine Traditional characters: 甲 - armor, shell; fingernails; 1st heavenly stem 二 - two; twice 醇 - rich, pure, as good as wine