noun-modifying (irregular)
biomolecular
Technical term used in biochemistry and molecular biology to describe molecules involved in biological processes.
生物分子の構造を解析する。
Analyze the structure of biomolecules.
この研究室では生物分子工学を研究している。
This laboratory researches biomolecular engineering.
生体分子 is a near-synonym also meaning 'biomolecule', but 生物分子 is slightly more common in compound terms like 生物分子科学.
Compound of 生物 (living organism) and 分子 (molecule). A straightforward modern technical term.