Manganic is a term commonly used in chemistry to refer to the divalent, trivalent, pentavalent, and hexavalent forms of manganese. However, if you're looking for synonyms for the word, you could consider using terms such as manganeseous, manganous, or even manganesic, depending on the specific context of the discussion. Additionally, if you're looking for words that describe different states of manganese oxidation, you could use terms like permanganic for Mn(VII) or manganic acid for Mn(IV). Whatever your specific needs may be, there are plenty of words available to help you express your ideas with clarity and precision in the field of chemistry.