What does "tincal" mean?

crude native borax, formerly imported from Tibet, and once the chief source of boric compounds

What is a synonym for "tincal"?

Common synonyms include: borax.

/ˈtɪŋkl̩/ noun

noun ·Rare ·Advanced level

Noun

1
crude native borax, formerly imported from Tibet, and once the chief source of boric compounds dated, uncountable

From Arabic تِنْكَار (tinkār), from Persian تنکار (tankâr), from Sanskrit टांकण (ṭāṃkaṇa). Compare altincar and tincar.