1. Of a grey with a pearly tinge
   - pearl grey [Brit, Cdn]

See also: achromatic, neutral

• rubella
• rubella panencephalitis
• rubellite
• Rubenesque
• Rubens
• rubeola
• Rubia
• Rubia cordifolia
• Rubia tinctorum
• Rubiaceae
• rubiaceous plant
• Rubiales
• rubicelle
• Rubicon
• rubicund
• rubicundity
• rubidium
• rubidium-strontium dating
• rubify
• rubiginous
• Rubin test
• Rubinstein
• ruble
• rubor
• rubric