astr - back
- astr
- astrand
- astriction
- astrionics
- astro
- astro compass
- astro compass-directional gyro
- astro fix
- astro-compass
- astro-position line
- astroballistic
- astrocompass
- astrocorrector
- astrodome
- astroemulsion
- astrogation
- astrogator
- astrograph
- astrometeorology
- astronautics ship
- astronautics support ship
- astronavigation
- astronomic longitude
- astronomic transit
- astronomical abberation
- astronomical altitude
- astronomical bearing
- astronomical constituent
- astronomical declination
- astronomical fix
- astronomical fixation
- astronomical navigation
- astronomical position finding
- astronomical tables
- astronomical unit
- astrophotometer
- astrophotometry
- astrotracker
- ASW
- ASW air vehicle
