1. A flat resulting from repeated deposits of alluvial material by running water
   - alluvial plain

Type of: flat

• Boott's goldenrod
• booty
• bootylicious
• booyong
• booze
• booze-up
• boozer
• boozing
• boozy
• bop
• bopeep
• bopper
• bora
• boracic
• boracic acid
• borage
• borage family
• Boraginaceae
• Borago
• Borago officinalis
• Borassus
• Borassus flabellifer
• borate
• borated
• borax