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Word of the Day Wednesday, June 10, 2026

tourmaline

/tɔːrˈmeɪliːn/ noun · British & US
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What does tourmaline mean?

noun

A mineral species of boron silicate, often found in igneous and metamorphic rocks, and prized for its vibrant colors and durability.

Example

"The geologist carefully extracted a tourmaline crystal from the rock face, admiring its deep blue-green hue."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for tourmaline

Rhymes with tourmaline

Etymologically related