Articles
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Dalmatian
"Firehouse dog."
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Dangerous Good
Any product, substance, or organism including by its nature in any of the nine United Nations (UN) classification of hazardous materials; term used to describe hazardous materials in the U.S. and Canada for hazardous materials on board aircraft
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Dangerous Good
Any product, substance, or organism including by its nature in any of the nine United Nations (UN) classification of hazardous materials; term used to describe hazardous materials in the U.S. and Canada for hazardous materials on board aircraft
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Darvon
A trade name for propoxyphene, a narcotic analgesic.
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DC
An abbreviation for direct current.
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Dead lay
A load of hose on a pumper, but not connected to a pump outlet. Often used for larger supply lines.
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Dead Load
Weight of the structure, structural members, building components, and any other feature permanently attached to the building that is constatnt and immobile
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Dead Load
Weight of the structure, structural members, building components, and any other feature permanently attached to the building that is constatnt and immobile
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Dead Man Zone
Unburnt areas around edges of brush fire.
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Dead Out
When a fire is completely out, with no smoldering or burning areas. (This is different from contained.)
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dead space
The portion of the tidal volume that does not reach the alveoli and thus does not participate in gas exchange.
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Dead-End Corridor
Corridor in which egress is possible in only one direction
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Dead-End Corridor
Corridor in which egress is possible in only one direction
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Dead-End Hydrant
Fire hydrant that receives water from only one direction.
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Dead-End Main
Water main that is not looped and in which water can flow in only one direction.
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death, biologic
Irreversible brain damage, usually occurring after 3 to 10 minutes of cardiac arrest.
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death, clinical
The moment the pulse and blood pressure are absent. Clinical death occurs immediately after the onset of cardiac arrest.
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decerebrate posture
A posture assumed by patients with severe brain dysfunction, characterized by extension and internal rotation of the arms and extension of the legs.
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decimal
A unit of 10; a system based on 10s.
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Deck gun
A master stream device mounted to top deck of pumper.
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Decking
Planks or panels of plywood or oriented strand board (OSB) that form the substrate of a roof assembly. In vertical ventilation through a roof, the decking must be removed from the ventilation opening to realize the full effect of the Read on! →
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decompensation
The failure of an organ system; most often used to indicate the failure of the heart, as the result of disease, to maintain sufficient circulation of blood to meet the demands of the body.
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Decontamination
Process of removing a hazardous, foreign substance from a person, clothing, or area
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Decontamination
Process of removing a hazardous, foreign substance from a person, clothing, or area
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decorticate posture
A posture assumed by patients with severe brain dysfunction, characterized by extension of the legs and flexion of the arms.
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decubitus ulcer
A bedsore; an eroded wound acquired by sustained pressure on a single area of skin.
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Defensive Attack
A primarily exterior form of attack often used when fighting the fire directly or from within a structure is not feasible due to dangers from direct flame, heat, structural collapse or the presence of hazardous materials. Often structures which are Read on! →
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defibrillation
The use of unsynchronized direct current (DC) electric shock to terminate ventricular fibrillation.
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defibrillator
A device that delivers direct current (DC) electric shock for the purpose of terminating ventricular fibrillation.
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Definitions A-Z
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definitive care
The D of the ABC-D sequence in advanced life support. Definitive care includes ECG monitoring, diagnosis and treatment of cardiac dysrhythmias, defibrillation, and administration of intravenous fluids and drugs.
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Deflagration
An explosion with a propagation front traveling at subsonic speeds, as compared to supersonic detonation.