1. A colorless crystalline hydrocarbon compound (C₁₃H₁₀) consisting of two benzene rings fused to a central five-membered ring, used in organic synthesis and as a precursor for various chemical compounds.
Usage: chemistry; technical

Examples

• Fluorene is a polycyclic aromatic hydrocarbon commonly used in laboratory research.
• The chemist synthesized a new derivative by modifying the fluorene core structure.
• Fluorene's three-ring structure makes it useful as a building block in organic chemistry.
• Industrial applications of fluorene include the production of advanced polymers and dyes.