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Word of the Day Tuesday, June 9, 2026

borax

/bɒræks/ noun · British & US
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What does borax mean?

noun

A naturally occurring mineral, sodium tetraborate, used as a disinfectant, cleaning agent, and in the manufacture of glass and ceramics. It is also used in the production of cosmetics and pharmaceuticals.

Example

"The hikers used borax to purify the water from the mountain stream."

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymologically related

Synonyms for borax

Rhymes with borax