Nutrient agar is a commonly used medium for the growth of microorganisms. However, there are several synonyms that refer to the same medium in different regions or industries. In medical research, nutrient agar may also be called trypticase soy agar (TSA) or Mueller-Hinton agar. In veterinary medicine, it may be referred to as tryptic soy agar. In the food industry, nutrient agar is sometimes known as beef extract agar or beef peptone agar. Additionally, nutrient agar can be modified to suit different purposes, such as adding specific nutrients or antibiotics, and each variation may have its own synonymous name. Regardless of the name, nutrient agar remains a critical component in bacterial culture and identification.