Formaldehydes are a chemical compound commonly used in industrial settings and for producing a range of products. However, in some applications, the term "formaldehydes" may not be the most appropriate, and synonyms are needed. Some alternative terms for formaldehydes include formalin, formal, methanal, and methylene oxide. Formalin is often used in medical and biological research as a fixative for tissues, and it is also used in embalming. Formal and methanal are more general terms that can refer to the chemical compound in various contexts. Finally, methylene oxide is used in the production of adhesives and resins. Using these synonyms for formaldehydes can help to provide clarity and precision in communication within different settings.