单词 | allotropy |
释义 | allotropy/əˈlɒtrəpi![]() noun [mass noun] Chemistry The existence of two or more different physical forms of a chemical element.With the exception of nitrogen, all group V elements show allotropy....
Derivativesallotropic![]()
OriginMid 19th century: from Greek allotropos 'of another form', from allo- 'other' + tropos 'manner' (from trepein 'to turn'). |
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