chokedamp
Definition
Noun: * A suffocating atmosphere in a mine: "Chokedamp" refers specifically to the air in a mine, especially after an explosion or in poorly ventilated areas, that has become dangerously high in carbon dioxide (and sometimes nitrogen) and low in oxygen, making it incapable of supporting life.
Usage
"Chokedamp" is a technical term used primarily in mining and historical contexts. It describes a lethal atmospheric condition underground. * The miners were warned of the presence of chokedamp in the old shaft. * Rescue efforts were hampered by the risk of encountering chokedamp.
Advanced Usage
- Historical Context: The term is closely associated with historical coal mining disasters before modern ventilation and gas detection. It is often contrasted with "firedamp" (methane gas, which is explosive) and "whitedamp" (carbon monoxide).
- While firedamp caused the initial explosion, the subsequent chokedamp claimed even more lives.
Variants and Related Words
- Blackdamp (noun): A synonym for "chokedamp," also emphasizing the suffocating nature of the gas mixture.
- Afterdamp (noun): The toxic mixture of gases (including carbon monoxide, carbon dioxide, and nitrogen) remaining in a mine after an explosion or fire. "Chokedamp" is sometimes used interchangeably with "afterdamp," though it more specifically implies high carbon dioxide.
Synonyms
- Blackdamp
- Stythe (regional, chiefly UK)
Antonyms
- Fresh air
- Ventilated atmosphere
Noun
-
the atmosphere in a mine following an explosion; high in carbon dioxide and incapable of supporting life
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