spacesuit

[speys-soot]
noun
a 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.
Also, space suit.


Origin:
1935–40; space + suit

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World English Dictionary
spacesuit (ˈspeɪsˌsuːt, -ˌsjuːt)
 
n
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

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Spacesuit-wearing cartoon dogs and yours could still figure out they were fellow canines.
But it was tricky to judge distance in the alien landscape, and stiff spacesuit gloves limited how fast he could work.
The bulky spacesuit makes a two-handed swing impossible.
The different spacesuit designs resulted in distinct difference in the temperatures of the teddies.
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