Meaning of “cast iron” in the English Dictionary

"cast iron" in British English

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cast ironnoun [ U ]

uk /ˌkɑːst ˈaɪən/ us /ˌkæst ˈaɪrn/

a type of hard iron that will not bend easily and is made into shapes by being poured into a mould when melted

cast-ironadjective

uk /ˌkɑːstˈaɪən/ us /ˌkæstˈaɪrn/

(Definition of “cast iron” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"cast iron" in American English

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cast ironnoun [ U ]

/ˈkæst ˈɑɪ·ərn/

a type of iron that is made into shapes by being poured into containers when melted:

a cast-iron frying pan

(Definition of “cast iron” from the Cambridge Academic Content Dictionary © Cambridge University Press)