return
actuation
autosuggestion
challenge-response
challenges'
chauvinist
circumnavigation
deorbit
docking
envelopment
expat
fast-track
field-goal
gas jet
gentleman-farmer
golden-red
high-g
hypersonic
intitle
ionization
low-altitude
midcourse
multifunction
nonimmigrant
parabolic
photochemistry
propulsive
regrav
remake
renshai
resupply
rotational
slingshot
split-second