Agena

[ uh-jee-nuh ]

noun

, Rocketry.

1. a U.S. upper stage, with a restartable liquid-propellant engine, used with various booster stages to launch satellites into orbit around Earth and send probes to the moon and other planets: also used as a docking target in the Gemini program.

Example Sentences

The crew successfully docked with an uncrewed Agena spacecraft, and Aldrin logged more than five hours outside the Gemini over the course of three separate spacewalks.

From Time