polishing slate

noun

A mineral used for polishing glass, marble, and metals, composed chiefly of silica, with a little alumina, lime, iron oxide, and water.

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Meanings

nounpolishing slate (countable and uncountable, plural polishing slates)

plural polishing slates

  1. countableuncountableA mineral used for polishing glass, marble, and metals, composed chiefly of silica, with a little alumina, lime, iron oxide, and water.
Cite this entry
APA

polishing slate. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/polishing%20slate

MLA

“polishing slate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/polishing%20slate. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “polishing slate,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/polishing%20slate.

Source: polishing slate on Wiktionary, CC BY-SA 4.0.