Biomacromolecules are large and complex molecules that are essential to the structure and function of living organisms. Synonyms for biomacromolecules include macromolecules, biopolymers, biogenic substances, biogenic compounds, biological polymers, biological macromolecules, and biological molecules. These synonyms are used interchangeably in scientific research and literature to describe the diverse range of large molecules found in biological systems, including proteins, nucleic acids, carbohydrates, and lipids. Each type of biomacromolecule plays a unique role in sustaining life, and understanding their structure and function is critical to advancing our knowledge of biology and medicine.