Nitration is a chemical process in which a nitro group is introduced to an organic compound. However, there are some other terms that can be used instead of nitration depending on the context. One such term is nitrification, which refers to the conversion of ammonia or ammonium into nitrite and then into nitrate by bacteria in the soil. Another synonym for nitration is nitrosation, which is similar to nitration, but involves the addition of a nitroso group to an organic compound. Finally, nitridation is the reaction of nitrogen with a metal or other material to form a nitride compound. Despite their similar-sounding names, it is important to use the correct term to accurately describe the chemical process taking place.