Air-tight helmet Synonyms

We can't find synonyms for the phrase "Air-tight helmet", but we have synonyms for terms, you can combine them.

AH abbreviation

AH is an abbreviation for Air-tight Helmet
What does AH stand for?
AH stands for "Air-tight Helmet"

Definitions for Air-tight


  • (adjective) not allowing air or gas to pass in or out
  • (adjective) having no weak points

Definitions for Helmet


  • (noun) a protective headgear made of hard material to resist blows
  • (noun) armor plate that protects the head