Meconic acid, a chemical compound found in several plants, can be referred to by various synonyms. One such alternative term is 3-hydroxy-2,4-pyrone, denoting its molecular structure. Additionally, it is commonly known as poppy acid due to its abundance in opium poppy plants. Another synonym is meconinic acid, referencing its origin from meconin, an alkaloid found in opium. Heterodigallic acid is another term used in the scientific community, highlighting its unique molecular composition. Furthermore, it is also categorized as a hydroxypyrone derivative due to its characteristic hydroxyl group and pyrone structure. These synonyms provide alternative names to describe and identify the compound known as meconic acid.