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tourmaline

tour·ma·line

UK/ˈtʊɚ.mə.lɪn/ US/ˈtʊɚ.məˌlin/ uncommon

noun

1.

a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones

Origin

From French tourmaline, ultimately from Sinhalese තෝරමල්ලී (tōramallī, “carnelian”)

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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.