Comcast and the CW Network Bring the CWâs Primetime Lineup to Xfinity On Demand. Comcast and The CW Network announced today they have reached an agreement that brings The CWâs popular primetime lineup to Xfinity On Demand.
âº to start burning, or to cause something to start burning: [ T ] The forest fire began when a spark from a campfire ignited some dry grass nearby. [ T ] fig. to ignite a controversy. (Definition of âigniteâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)
Fire is a very rapid chemical reaction between oxygen and a combustible material, which results in the release of heat, light, flames, and smoke. For fire to exist, the following four elements must be present at the same time: 1  Enough oxygen to sustain combustion. 2  Enough heat to raise the material to its ignition temperature. 3  Some sort of fuel or combustible material.  The chemical reaction that is fire.