NIH MeSH · D018478Technology, Industry, and Agriculture
Extravehicular Activity
Also known asActivity, Extravehicular · EVA · Space-Walk · Space Walk · Space-Walks
Definition
Activities by crew members conducted outside the pressurized hull of a spacecraft.
MeSH classification
- J01.937.285.850.400
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What does Extravehicular Activity mean in medicine?
Activities by crew members conducted outside the pressurized hull of a spacecraft. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Extravehicular Activity known by any other names?
Yes. Extravehicular Activity is also referred to as Activity, Extravehicular, EVA, Space-Walk, Space Walk in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Extravehicular Activity sit in the medical classification?
Extravehicular Activity falls under the broader medical category "Technology, Industry, and Agriculture" in the MeSH hierarchy (tree numbers: J01.937.285.850.400). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Extravehicular Activity?
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Source: NIH MeSH 2026 (D018478) — National Library of Medicine, public domain. View official MeSH record ↗