| 1. | a person, as a worker or athlete, of great physical endurance who can be depended upon to perform a given task or job tirelessly. |
| 2. | a machine that performs a job formerly done by hand; robot. |
| 3. | Slang. a dollar bill or a silver dollar. |
n] 
| Calvin Edward (“Cal”; “Iron Man”), born 1960, U.S. baseball player. |
| iron man | |
noun | |
| a strong man of exceptional physical endurance |