jet·pack 
(jĕtpăk′)
(jĕtpăk′)n.
A backpack powered by jets, used especially to enable an astronaut to maneuver independently during a spacewalk.
- beta
- beta-adrenergic
- beta-adrenergic antagonist
- beta-adrenergic blocker
- beta-adrenergic receptor
- beta-agonist
- beta-amyloid
- beta-blocker
- beta carotene
- beta-carotene
- beta cell
- beta decay
- beta-endorphin
- beta error
- beta globulin
- betaine
- beta interferon
- Beta Israel
- betake
- beta-lactam
- beta-lactam antibiotic
- beta-lactamase
- betamethasone
- beta-oxidation
- beta particle