Found 1 items, similar to Millstone girt.
English → English (gcide) Definition: Millstone girt Millstone \Mill"stone`\, n. One of two circular stones used for grinding grain or other substance in a mill[1]. [1913 Webster] No man shall take the nether or the upper millstone to pledge. --Deut. xxiv. 6. [1913 Webster] Note: The cellular siliceous rock called buhrstone is usually employed for millstones; also, some kinds of lava, as that Niedermendig, or other firm rock with rough texture. The surface of a millstone has usually a series of radial grooves in which the powdered material collects. [1913 Webster] Millstone girt (Geol.), a hard and coarse, gritty sandstone, dividing the Carboniferous from the Subcarboniferous strata. See Farewell rock, under Farewell, a., and Chart of Geology. To see into a millstone or To see through a millstone, to see into or through a difficult matter. (Colloq.) [1913 Webster]