1. Of or belonging to astronauts or the science of astronautics
   - astronautical

See also: astronaut, astronautics

• blitz
• blitzkrieg
• Blitzstein
• Blixen
• blizzard
• bloat
• bloater
• blob
• bloc
• Bloc Québécois
• Blocadren
• Bloch
• block
• block anaesthesia
• block and tackle
• block anesthesia
• block capital
• block diagram
• block grant
• block letter
• block of metal
• block off
• block out
• block plane
• block up