Definition of iron lady:
(n) :
(especially) Margaret Thatcher.
(n) :
A nickname given to various female leaders, indicating that they are strong-willed and unyielding.
(n) :
The iron maiden at Nuremberg.
(n) :
A strong-willed and unrelenting female leader.
(n) :
(archaic) A sewing machine.
(n) :
Alternative form of iron maiden. [(historical) A falsely or neo-medieval torture device invented in the 18th century consisting of a chamber lined with spikes which closes upon and impales the victim inside.]