Historical Examples. 1  But this is insecure ground, and the meaning can but be guessed at. 2  He realized that his tenure was insecure, and he dreaded exposure. 3  Her foot slipped from its insecure rock hold and she stumbled. 4  He left her with the feeling that the foundations70 of life, as she was leading it, were insecure.
Carbon monoxide poisoning is caused by inhaling combustion fumes. When too much carbon monoxide is in the air you're breathing, your body replaces the oxygen in your red blood cells with carbon monoxide. This prevents oxygen from reaching your tissues and organs. Various fuel-burning products and engines produce carbon monoxide.
An odorless and colorless gas causes carbon monoxide poisoning and it can be deadly. But carbon monoxide (CO) poisoning can be prevented. Burning any fuel produces carbon monoxide. This means any fuel-burning appliance in your home is a potential source.f you have any of these symptoms -- and if you feel better when you go outside your home but the symptoms reappear once you're back inside -- you may have carbon monoxide poisoning. If carbon monoxide poisoning is known or suspected: 1  Get out of the building or car where the carbon monoxide is present. 2  Keep still.