| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Extravehicular activity | Aerospace | Activities by crewmembers conducted outside the spacecraft pressure hull or within the cargo bay when the cargo bay doors are open. (references) | |
| Extravehicular activity | Health | Activities by crew members conducted outside the pressurized hull of a spacecraft. (references) | |
| Extravehicular activity (EVA) | Aerospace | An Extravehicular Activity, or EVA, is any activity that occurs external to the space vehicle requiring a crew member to wear a life support suit and exit the vehicle. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
