1. Plural of jetpack; devices worn on the back that use jet propulsion to allow a person to fly through the air.
Usage: Usually used in plural form or as a mass noun when referring to the technology or multiple units.; Common in science fiction and futuristic contexts; practical versions remain experimental or limited in real-world use.

Examples

• The astronauts trained with jetpacks to prepare for their spacewalk.
• In the movie, the hero escaped the building by strapping on jetpacks.
• Engineers have been developing jetpacks for decades, but they remain impractical for everyday use.
• The science fiction novel imagined a future where jetpacks replaced cars.
• Military researchers explored jetpacks as a way to help soldiers cross difficult terrain.
• Jetpacks appeared in the 1960s television show as a symbol of advanced technology.