1. a US rocket used in the 1960s and 1970s to send spacecraft and satellites into space. The original Saturn was developed in 1958 by Wernher von Braun , and it had two rockets used in sequence. Saturn 5 had three rockets and carried 12 million US gallons (45.6 million litres) of fuel. It was used for the Apollo program to send men to the moon.
2. a popular make of small US car that is cheap to run, produced by General Motors since 1990.