the existence of two or more allotropes of a chemical element 同素异形体:化学元素存在两个或多个同素异形体 Word Originmid 19th cent.: from Greek allotropos ‘of another form’, from allo- ‘other’ + tropos ‘manner’ (from trepein ‘to turn’).
👨🏻🏫 Mr. Ng 牛津詞典 📚 – oxford.mister5️⃣.net
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