blackdamp
Học thuậtThân thiện
Definition
Noun A suffocating atmosphere, especially in a mine after an explosion or fire, characterized by a lack of oxygen and a high concentration of carbon dioxide and nitrogen, making it incapable of supporting life.
Usage
The term "blackdamp" is used specifically in the context of mining and enclosed spaces to describe a deadly, oxygen-deficient atmosphere. It is a technical term from mining safety.
Examples
- The rescue team was delayed due to the presence of blackdamp in the collapsed tunnel.
- Miners carried canaries to detect blackdamp, as the birds would succumb before the gas affected humans.
- After the fire was extinguished, the mine was filled with blackdamp, preventing immediate entry.
Advanced Usage
- "Chokedamp": A synonym for blackdamp, emphasizing its suffocating quality.
- "Stythe": A regional term, chiefly British, for blackdamp.
Variants and Related Words
- Afterdamp: A related but distinct term referring to the toxic mixture of gases (like carbon monoxide) remaining after a mine explosion, not simply oxygen deprivation.
- Firedamp: A flammable gas (methane) found in coal mines, which is a common cause of explosions that can lead to blackdamp.
- Whitedamp: Carbon monoxide.
Synonyms
- Chokedamp
- Stythe
Antonyms
- Fresh air
- Breathable atmosphere
Noun
- the atmosphere in a mine following an explosion; high in carbon dioxide and incapable of supporting life