1. Aspen with a narrow crown; eastern North America
   - Canadian aspen, bigtooth aspen, bigtoothed aspen, big-toothed aspen, large-toothed aspen, large tooth aspen

Type of: aspen

• boiler
• boilermaker
• boilerplate
• boilers suit
• boilersuit
• boiling
• boiling point
• boiling water reactor
• boing
• Boise
• boisterous
• boisterously
• boisterousness
• bok choi
• bok choy
• Bokkos
• Bokmaal
• Bokmal
• bola
• bola tie
• Bolanci
• Bolbitis
• bold
• BOLD FMRI
• boldface