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tour·ma·line (tur·ma·line)
 tourmaline (turmaline)
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- pronunciation:
- tur
m
lihn
[or]
tur
m
lin
- features:
- Word Combinations (noun)
| part of speech: |
noun |
| definition: |
a complex silicate mineral containing several elements, most importantly boron and aluminum, used in electronic instruments and, in its colorful and transparent varieties, as a gemstone.
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| derivation: |
tourmalinic (adj.) |
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