a. (Naut.) Having the ironwork loose or corroded; -- said of a ship when her bolts and nails are so eaten with rust that she has become leaky. [ 1913 Webster ]
a. Having iron sides, or very firm sides. [ 1913 Webster ]
n. a man of great strength and endurance, especially on who is brave. [ PJC ]
n. A cuirassier or cuirassiers; also, hardy veteran soldiers; -- applied specifically to Cromwell's cavalry.
Old Ironsides. (U. S. Hist.)
n.
Clay ironstone.
Ironstone china,