Nickelic is an adjective that describes something related to nickel. Its synonyms include nickelous, niccolic, and nickeliferous. These terms are often used in the fields of chemistry, geology, and metallurgy. Nickelous is commonly used to describe the +2 oxidation state of nickel, while niccolic refers to compounds containing nickel and carbon. Nickeliferous is used to describe substances that contain a significant amount of nickel. These synonyms can help to add variety and precision to one's language when discussing nickel-related topics. By using these terms, writers can convey specific information and enhance the clarity of their writing.