Definition of cast iron
: a commercial alloy of iron, carbon, and silicon that is cast in a mold and is hard, brittle, nonmalleable, and incapable of being hammer-welded but more easily fusible than steel
Examples of cast iron in a Sentence
The fence is made of cast iron.
First Known Use of cast iron
CAST IRON Defined for English Language Learners
Definition of cast iron for English Language Learners
: a very hard type of metal that is made into different shapes by being melted and poured into special containers (called casts or molds)
CAST IRON Defined for Kids
Definition of cast iron for Students
: a hard and brittle alloy of iron, carbon, and silicon shaped by being poured into a mold while melted
Seen and Heard
What made you want to look up cast iron? Please tell us where you read or heard it (including the quote, if possible).