a. [ Compar. Flintier superl. Flintiest. ] Consisting of, composed of, abounding in, or resembling, flint; as, a flinty rock; flinty ground; a flinty heart. [ 1913 Webster ]
Flinty rock, or Flinty state, a siliceous slate; -- basanite is here included. See Basanite. [ 1913 Webster ]