What term refers to a warship that is equipped with iron plating for protection and was first used during the Civil War?

The term that refers to a warship equipped with iron plating for protection and first used during the Civil War is "Ironclad." The significance of ironclad warships emerged from advancements in naval technology during this period, particularly in the context of the Civil War. These ships were designed to withstand enemy fire and attack, making them revolutionary in naval warfare. The famous clash between the USS Monitor and the CSS Virginia (Merrimack) in 1862 exemplified the transition from wooden ships to ironclad vessels, marking a pivotal moment in maritime history. The effectiveness and resilience of ironclads influenced naval strategies and ship design for years to come.