Dictionary
cast' i'ron
an alloy of iron, carbon, and other elements, cast as a soft and strong, or as a hard and brittle, iron, depending on the mixture and methods of molding.
cast-i•ron
Pronunciation: (kast'ī'urn, käst'-), [key]—
adj.
1. made of cast iron.
2. not subject to change or exception:
a cast-iron rule.
3. hardy:
a cast-iron stomach. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.