chromiumn.
英 'krəʊmɪəm | 美 'kromɪəm
中文n. [化学] 铬（24号元素，符号Cr）
词根词源
chromium (n.)metallic element, 1807, with metallic elemental suffix -ium + French chrome (Fourcroy and Haüy), from Greek chroma "color" (see chrome; also see chroma). So called for its colorful compounds. Related: Chromite.
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