Definition

Noun: A special protective garment worn by astronauts that provides a controlled, life-supporting environment when they are outside a spacecraft in the vacuum of space or on the surface of another celestial body. It maintains stable internal pressure, supplies breathable air, regulates temperature, and protects against radiation and micrometeoroids.

Usage

The word "spacesuit" is a countable noun. It refers to the complete, integrated garment system. - Example: The astronaut put on her spacesuit before the spacewalk. - Example: Modern spacesuits are highly complex pieces of technology.

Examples

• Before exiting the airlock, the crew must check all the connections on their spacesuit.
• The new spacesuit design allows for greater mobility.
• A malfunction in the spacesuit's cooling system can be very dangerous.

Advanced Usage

• "to don a spacesuit": A formal or technical way to say "to put on a spacesuit."
  • The pilot donned his spacesuit in preparation for the high-altitude flight test.
• "spacesuit-clad": (Adjective) Describing someone who is wearing a spacesuit.
  • The spacesuit-clad figure floated gracefully outside the station.

Variants and Related Words

• Pressure suit (n): A more general term for a suit that provides pressure; a spacesuit is a specific type of pressure suit designed for space.
• EMU (n): Acronym for , the specific spacesuit system used by NASA for spacewalks.
• IVA Suit (n): suit, a simpler pressure suit worn inside a spacecraft during critical phases like launch and re-entry.

Synonyms

• EVA suit (n): suit; another term for a spacesuit designed for use outside a vehicle.
• Space gear (n): A more informal, collective term for astronaut equipment, which can include the spacesuit.

Related Phrases

• "to test a spacesuit": To evaluate its systems and functionality.
  • Engineers test the spacesuit in a vacuum chamber that simulates space conditions.
• "spacesuit maintenance": The work required to keep the suits in operational condition.
  • After each mission, spacesuit maintenance is a lengthy process.

Noun

1. a pressure suit worn by astronauts while in outer space