Term: space helmet: a helmet worn by astronauts while in outer space
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: gaffer: an electrician responsible for lighting on a movie or tv set
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: first law of motion: a body remains at rest or in motion with a constant velocity unless acted upon by an external force
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: buffer solution: a solution containing a buffer
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: respiratory tract: the passages through which air enters and leaves the body
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: principle: a rule or standard especially of good behavior
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: jack: a small ball at which players aim in lawn bowling
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: lymantriidae: tussock moths
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: impeachment: a formal document charging a public official with misconduct in office
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: silicosis: a lung disease caused by inhaling particles of silica or quartz or slate
Broader: helmet: a protective headgear made of hard material to resist blows | Unrelated: hollow: a cavity or space in something