1. The branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life
   - exobiology, astrobiology

Type of: biological science, biology

Encyclopedia: Space biology

• 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
• Rubus cuneifolius
• Rubus flagellaris
• Rubus fruticosus
• Rubus hispidus