Something, such as a sword, that is made of steel, A modified form of iron, not occurring in nature, but known and manufactured from very early times, and at the present time of the highest importance in its various applications to the wants of man, of manganese. The parts subjected to extension do not contain more than, adjective_ Made with, relating to, or consisting of steel, Very firm or strong, Of a steel gray, transitive verb_ To cover, plate, edge, or point with steel, To make hard, strong, or obdurate; strengthen, To overlay, point, or edge with steel