1A current of air or water that flows backward down a chimney, pipe, etc.
- He won the race after the lead Plymouth spun out temporarily when it lost its rear window to the suction of the backdraft.
- However, out on the open road, the absence of a backdraught excluder screen (optional but not on the test car) meant wind noise and turbulence limited cruising speeds to what was comfortable.
- The backdraft from its thrusters sent all of the cars flying.
2A phenomenon in which a fire that has consumed all available oxygen suddenly explodes when more oxygen is made available, typically because a door or window has been opened.
- Plus, you have to watch for possible explosions, gas leaks, backdrafts, and flash fires, and so you can't just point your firefighters at fires and let them work on their own.
- There are other hazards - collapsing ceilings, backdrafts, pools of oil, sudden explosions, exposed wiring, annoying little cleaning droids - but they all pale into insignificance next to the burning building around you.
- Falling masonry, backdrafts and explosions are all very real dangers facing a firefighter outside the training room.
- Example sentences
- Sealed-combustion water heaters draw all their combustion air from the outdoors, which eliminates any chance of backdrafting.
- Be sure that the installer checks for backdrafting on all vented appliances.
- If these rooms are significantly depressurized, there is a danger of backdrafting.
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