Astronautics Vocabulary : compte à rebours
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.
- Words starting with letter A
- Words starting with letter B
- Words starting with letter C
- Words starting with letter D
- Words starting with letter E
- Words starting with letter F
- Words starting with letter G
- Words starting with letter H
- Words starting with letter I
- Words starting with letter J
- Words starting with letter K
- Words starting with letter L
- Words starting with letter M
- Words starting with letter N
- Words starting with letter O
- Words starting with letter P
- Words starting with letter Q
- Words starting with letter R
- Words starting with letter S
- Words starting with letter T
- Words starting with letter U
- Words starting with letter V
- Words starting with letter W
- Words starting with letter X
- Words starting with letter Y
- Words starting with letter Z
Definition of countdown
- Translation:
- compte à rebours
- Definition:
- Part of the launch sequence preceding lift-off or a firing order taken as a reference time.
- Other Definition:
- None
- Synonym:
- None