Metallurgy Glossary

verb to make or become hard or harder

• The steel was heated to a specific temperature to harden it.
• You need to harden up and face the reality of the situation.
• I need to toughen up and harden myself for the challenges ahead.
• His heart had hardened over the years, making him less compassionate towards others.

noun a furnace or oven for burning, baking, or drying, especially one for calcining lime or firing pottery

• The ceramics were fired in the kiln to harden and set the glaze.
• We're going to need to fire up the kiln before we can start making pottery.
• Let's crank up the kiln and get these clay pots cooking!
• Working in the kiln of competition, she emerged stronger and more resilient.

noun a realm or domain consisting of minerals

• The mineral kingdom consists of inorganic substances like rocks, minerals, and crystals.
• Have you ever studied the mineral kingdom in geology class?
• I heard the mineral kingdom is full of cool shiny rocks and stuff.
• In the vast mineral kingdom of the Earth, each mineral plays a unique role like pieces of a puzzle.