[non-kuh m-buhs-tuh-buh l]
- not flammable.
- a noncombustible substance.
Origin of noncombustible
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for non-combustible
For five miles they had laid a blanket of non-combustible gases.The Hammer of Thor
Charles Willard Diffin
Asbestos is merely a non-combustible material in which air may be entrapped, but, when non-porous, is a good conductor of heat.
The whole of the building to be composed of non-combustible materials, such as iron, stone, or bricks.Fire Prevention and Fire Extinction
This will not apply to concealed work in walls or ceilings composed of concrete, tile or other non-combustible material.
Must be made entirely of non-combustible materials, except such minor parts as handles, magnet insulation, etc.
Word Origin and History for non-combustible
Online Etymology Dictionary, © 2010 Douglas Harper