Cast iron

Cast iron is popular for cookware where an even heating temperature is important.

The history of cast iron in railway bridges is much more grimly chequered. Brunel's misgivings were proved prudent, tragically, in the 1879 failure of Thomas Bouch's Tay bridge (once a monument to cast iron, now a memorial to many lives lost).

I use a cast iron skillet for frying pancakes.

Various forms of conductors have been invented, such as wooden and iron pipes, of a round, square, and polygonal section; but at present, scarcely any other than sheet or cast iron pipes are employed.

The old black cast iron skillet is an important part of the batterie de cuisine.

Three small gelignite bombs, with pocket watch timing devices, were concealed in packets small enough to fit through the slot of the standard cast-iron post box, the cylindrical bright red colored boxes so common throughout London.

Ernest has a cast iron constitution and never gets sick.

Just because a pilot passes a pretty severe medical test every so often, it doesn't mean that he has a Cast Iron constitution and can fly indefinitely.

The school's cast iron policy on admissions fees left no leeway for needy students.

As far as her own theories are concerned, she is limitlessly credulous, to a degree which makes me suspect that she is a cast-iron idiot.