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gritstone |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 3. pl Grain, esp. oats or wheat, hulled and coarsely ground; in high milling, fragments of cracked wheat smaller than groats. 4. (Geol.) A hard, coarse-grained siliceous sandstone; as millstone grit; -- called also {gritrock} and {gritstone.} The name is also applied to a finer sharp-grained sandstone; as grindstone grit. 5. Structure, as adapted to grind or sharpen; as a hone of good grit. 6. Firmness of mind; invincible spirit; unyielding courage; fortitude. --C. Reade. E. P. Whipple. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Gritrock \Grit"rock`\ (gr[i^]t"r[o^]k`), Gritstone \Grit"stone`\ (-st[=o]n`)n. (Geol.) See {Grit}, n., 4. From WordNet r 1.6 [wn]: gritstone n : a hard coarse-grained siliceous sandstone [syn: {grit}, {gritrock}]
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