1. a woman of great strength, endurance, or determination; a woman who is exceptionally tough or resilient
Usage: often capitalized when referring to the Ironwoman competition; informal
2. a female competitor in the Ironwoman triathlon event, which involves swimming, cycling, and running
Usage: sports; often capitalized

Examples

• She proved herself an ironwoman by completing the grueling marathon despite her injury.
• The ironwoman competition attracts elite athletes from around the world.
• Her ironwoman determination helped her overcome every obstacle in her career.
• Training for the Ironwoman event requires months of dedicated preparation.
• The ironwoman finished the race in record time, impressing all the spectators.