Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

Definition of orbit replaceable unit (ORU)

Translation: unité remplaçable sur orbite

Definition: Separate and interchangeable module which can be replaced during spacewalks or remotely.

Other Definition: None

Synonym: None