millstone grit

noun — 2 senses

nounalso spelled Millstone Grit

Synonym of millstone (“a coarse-grained sandstone used for making round stones for making grain”)

Millstone Grit

noun

Geography, Geology, Natural sciences A group of coarse-grained sandstone from the Carboniferous period, primarily found in the British Isles.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for millstone grit and Millstone Grit.