1. Wavy or notched and curled very irregularly

See also: rough

• Rubia tinctorum
• Rubiaceae
• rubiaceous plant
• Rubiales
• rubicelle
• Rubicon
• rubicund
• rubicundity
• rubidium
• rubidium-strontium dating
• rubify
• rubiginous
• Rubin test
• Rubinstein
• ruble
• rubor
• rubric
• rubrical
• rubricate
• Rubus
• Rubus australis
• Rubus caesius
• Rubus canadensis
• Rubus chamaemorus
• Rubus cissoides