1. Of a chemical compound having a ring with six members
   - six-membered

See also: membered

• efflorescent
• effluence
• effluent
• effluvial
• effluvium
• efflux
• effluxion
• effort
• effortful
• effortfulness
• effortless
• effortlessly
• effortlessness
• effrontery
• effulgence
• effulgent
• effuse
• effusion
• effusive
• effusively
• effusiveness
• EFL
• Efrem Zimbalist
• eft
• EFTA