- (used with a singular verb) a nickname of Oliver Cromwell.
- the soldiers serving under Cromwell.
Examples from the Web for ironsides
Montfitchet Tower was all that remained of the old castle destroyed by Cromwell's Ironsides.The Reason Why|Elinor Glyn
Cromwell, with his Ironsides, upon the other hand, had broken Langdale's horse and driven them from the field.Friends, though divided|G. A. Henty
And its holders had angered the great leader of the Ironsides by killing one of his most valued officers.Historical Tales, Vol. 4 (of 15)|Charles Morris
Every thing in the "Ironsides" was wet, but the stores of the "Hope" were in perfect order.North-Pole Voyages|Zachariah Atwell Mudge
Think of Cromwell and his Ironsides, before whom Europe trembled.The Whence and the Whither of Man|John Mason Tyler
British Dictionary definitions for ironsides (1 of 2)
- the cavalry regiment trained and commanded by Oliver Cromwell
- Cromwell's entire army