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单词 troctolite
释义

troctoliten.

/ˈtrɒktəʊlʌɪt/
Forms: Also troktolite.
Etymology: < German troktolit (Von Lasaulx, 1875), < Greek τρώκτης a kind of sea-fish (taken as = trout) + λίθος stone: see -lite comb. form1.
Mineralogy.
(See quot. 1892.)
ΚΠ
1883 Science 1 342/2 The term ‘troktolite’ is the equivalent of the more common ‘forellenstein’.
1892 Chambers's Encycl. X. 301 Troctolite (trout-stone), a variety of Gabbro, composed almost entirely of white felspar..and dark olivine.
This entry has not yet been fully updated (first published 1915; most recently modified version published online December 2020).
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n.1883
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