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

See also: membered

• ununpentium
• ununquadium
• ununtrium
• unusable
• unuseable
• unused
• unusefulness
• unusual
• unusual person
• unusually
• unusualness
• unutterable
• unutterably
• unuttered
• unvaccinated
• unvalued
• unvaned
• unvanquishable
• unvanquished
• unvaried
• unvariedness
• unvarnished
• unvarying
• unveil
• unveiled