flint

1. n. A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture and sharp edge. It is very hard, and strikes fire with steel. Source: opted

2. n. A piece of flint for striking fire; -- formerly much used, esp. in the hammers of gun locks. Source: opted

3. n. Anything extremely hard, unimpressible, and unyielding, like flint. Source: opted

4. adj. showing unfeeling resistance to tender feelings Source: wordnet

5. n. a hard kind of stone; a form of silica more opaque than chalcedony Source: wordnet

6. A massive, somewhat impure variety of quartz, in color usuallyof a gray to brown or nearly black, breaking with a conchoidalfracture and sharp edge. It is very hard, and strikes fire withsteel. Source: adambom

7. n:100 n. a hard kind of stone; a form of silica more opaque than chalcedony n. a river in western Georgia that flows generally south to join the Chattahoochee River at the Florida border where they form the Apalachicola River n. a city in southeast central Michigan near Detroit; automobile manufacturing Source: ecdict

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