1. cast iron - Noun
2. cast iron - Adjective
4. cast iron - Adjective Satellite
Highly carbonized iron, the direct product of the blast furnace; -- used for making castings, and for conversion into wrought iron and steel. It can not be welded or forged, is brittle, and sometimes very hard. Besides carbon, it contains sulphur, phosphorus, silica, etc.
Made of cast iron. Hence, Fig.: like cast iron; hardy; unyielding.
Source: Webster's dictionarycast-iron
an iron constitution Source: Internet
According to Historic England, it is the finest of only three examples of listed cast iron ornamental fountains in England. Source: Internet
A common term for a cast iron anvil is "ASO" or "Anvil Shaped Object". Source: Internet
Additionally, a previous owner removed and sold for scrap the 3 cast iron discharge pipes that previously allowed a controlled release of water. Source: Internet
After more than 100 years, the wrought iron, cast iron and timber construction had seriously deteriorated. Source: Internet
After much careful thought he produced the hydraulic accumulator, a cast-iron cylinder fitted with a plunger supporting a very heavy weight. Source: Internet