cast iron vs malt

cast iron

noun
  • A hard and brittle, but strong, alloy of iron, carbon, and silicon, formed by casting in a mould. 

adj
  • Inflexible or without exception. 

  • Made of cast iron. 

  • Durable; tough; resilient. 

malt

noun
  • Malted grain (sprouted grain) (usually barley), used in brewing and otherwise. 

  • A milkshake with malted milk powder added for flavor. 

  • Malt liquor, especially malt whisky. 

  • Maltose-rich sugar derived from malted grain. 

verb
  • To convert a cereal grain into malt by causing it to sprout (by soaking in water) and then halting germination (by drying with hot air) in order to develop enzymes that can break down starches and proteins in the grain. 

  • To become malt. 

How often have the words cast iron and malt occurred in a corpus of books? (source: Google Ngram Viewer )