Homologous series is a term commonly used in chemistry to refer to a group of organic compounds that possess similar chemical and physical properties with a recurring molecular structure. Synonyms for homologous series include the family of compounds, series of homologues, homologues, and homologic series. These terms can be used interchangeably to describe chemical compounds that share a common pattern of molecular structure, physical properties, and chemical reactivity. Homologous series is an essential concept in organic chemistry, as it plays a crucial role in the classification and understanding of organic compounds. Therefore, understanding the synonyms for homologous series is essential for chemistry students and researchers alike.