- bonedome
- Noun. A protective helmet, such as a motorcycle helmet.
English slang and colloquialisms. 2014.
English slang and colloquialisms. 2014.
bonedome — A protective helmet worn by combat crews while flying. Some of these have built in internal cloth or leather helmets with built in earphones. In other cases, the bonedome is worn over a leather or cloth internal helmet … Aviation dictionary