unˈdersong noun (archaic)

1. A burden or refrain, etc of song or of sound
2. An undertone less pleasant in quality (figurative)

• mesomorphous
• mesomorphs
• mesomorphy
• meson
• mesonephric duct
• mesonic
• mesonic atom
• mesons
• mesopause
• mesopauses
• mesopelagic
• mesophyll
• mesophylls
• mesophyte
• mesophytes
• mesophytic
• mesoscaphe
• mesoscaphes
• mesosphere
• mesospheres
• mesospheric
• mesothelia
• mesothelial
• mesothelioma
• mesotheliomas