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

See also: astronaut, astronautics

• Psocoptera
• psocopterous insect
• Psophia
• Psophia crepitans
• Psophiidae
• Psophocarpus
• Psophocarpus tetragonolobus
• Psoralea
• Psoralea esculenta
• psoriasis
• psoriatic arthritis
• psst
• PST
• psych
• psych out
• psych up
• psyche
• psychedelia
• psychedelic
• psychedelic drug
• psychedelic rock
• psychiatric
• psychiatric hospital
• psychiatrical
• psychiatrist