any of various types of sealed and pressurized suits worn by astronauts or cosmonauts that provide an artificial atmosphere, acceptable temperature, radiocommunication link, and protection from radiation for work outside a spacecraft
WordReference Random House Learner's Dictionary of American English © 2025
space•suit /ˈspeɪsˌsut/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Aerospacea sealed suit designed to allow the wearer to leave a pressurized cabin in outer space.
space•suit
(spās′so̅o̅t′),USA pronunciation n.
- Aerospacea sealed and pressurized suit designed to allow the wearer to leave a pressurized cabin in outer space or at extremely high altitudes within the atmosphere.
- space + suit 1935–40
Collins Concise English Dictionary © HarperCollins Publishers::
'spacesuit' also found in these entries (note: many are not synonyms or translations):