[flint] n [ME, fr. OE; akin to OHG flins pebble, hard stone] (bef. 12c) 1: a massive hard quartz that produces a spark when struck by steel
2: an implement of flint used in prehistoric cultures 3 a: a piece of flint b: a material used for producing a spark; esp: an alloy (as of iron and cerium) used in lighters
4: something resembling flint in hardness -- flint.like adj