1. Of or relating to a sophomore; immature and silly

Encyclopedia: Sophomoric

• mercury-in-glass thermometer
• mercury-vapor lamp
• mercury-vapour lamp
• mercy
• mercy killing
• mercy seat
• mere
• Meredith
• merely
• merengue
• merestone
• up-to-the-minute
• Upanishad
• upas
• upbeat
• upbound
• upbraid
• upbraider
• upbraiding
• upbringing
• upcast
• upchuck
• upcoming
• upcountry
• upcurved