1. (used of statements) harmful and often untrue; tending to discredit or malign
   - calumnious, defamatory, denigrative, denigrating, denigratory, libellous [Brit, Cdn], libelous [US], slanderous

See also: harmful

• radiotelegraphy
• radiotelephone
• radiotelephonic
• radiotelephony
• radiotherapist
• radiotherapy
• radiotherapy equipment
• radiothorium
• radish
• radish plant
• radium
• radium therapy
• radius
• radius of curvature
• radius vector
• radix
• radome
• radon
• radula
• Radyera
• Radyera farragei
• raetam
• RAF
• Raffaello Santi
• Raffaello Sanzio