Incombustible \In`com*bus"ti*ble\, a. [Pref. in- not +
combustible: cf. F. incombustible.]
Not combustible; not capable of being burned, decomposed, or
consumed by fire; uninflammable; as, asbestus is an
incombustible substance; carbon dioxide is an incombustible
gas.
[1913 Webster]
{Incombustible cloth}, a tissue of amianthus or asbestus;
also, a fabric imbued with an incombustible substance. --
{In`com*bus"ti*ble*ness}, n. -- {In`com*bus"ti*bly}, adv.
[1913 Webster]