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单词 plumballophane
释义

plumballophanen.

Origin: Formed within English, by compounding; modelled on an Italian lexical item. Etymons: plumbo- comb. form, allophane n.
Etymology: < plumbo- comb. form + allophane n., after Italian plumballofane (L. Bombicci 1868, in Atti Soc. ital. sci. nat. 11 114).
Mineralogy. Obsolete. rare.
A variety of allophane containing a small proportion of lead.
ΚΠ
1872 G. J. Brush in J. D. Dana Syst. Mineral. (new ed.) App. i. 12 Plumballophane, a name given by Bombicci to a plumbiferous allophane from Monte Vecchio in Sardinia. Occurs in small stalactitic cylinders, rough and opaque on the surface, but interiorly glassy.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online June 2018).
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n.1872
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