Preservative media is often used in scientific research to maintain the growth and viability of microorganisms. However, there are several other synonyms that can be used to describe similar materials. Examples of these include shipping media, transport media, and storage media. These types of media are designed to control the pH, temperature, and oxygen levels of the solution to prolong the life of the organisms. Other synonyms include preservation media, culture media, and collection media. Overall, there are a variety of terms that can be used to describe media used to preserve microorganisms in scientific research.