Meanings
nounrock flour (countable and uncountable, plural rock flours)
plural rock flours
- countableuncountableFine-grained, silt-sized particles of rock generated by mechanical grinding of bedrock by glacial erosion or artificially.
Synonyms: glacial flour, stonemeal
Synonyms & antonyms
nounFine-grained, silt-sized particles of rock generated by mechanical grinding of bedrock by glacial erosion or artificially.
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Cite this entry
APA
rock flour. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rock%20flour
MLA
“rock flour.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rock%20flour. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “rock flour,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rock%20flour.
Source: rock flour on Wiktionary, CC BY-SA 4.0.