1. Of plants that flourish in a rocky environment

See also: healthy

• observer's meridian
• observing
• observingly
• obsess
• obsessed
• obsession
• obsessional
• obsessionally
• obsessive
• obsessive-compulsive
• obsessive-compulsive disorder
• obsessive-compulsive personality
• obsessively
• obsessiveness
• obsessivity
• obsidian
• obsolesce
• obsolescence
• obsolescent
• obsolete
• obsoleteness
• obstacle
• obstacle course
• obstacle race
• obstetric