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flashdamp

noun

Etymology

From flash + damp, with 'damp' having the meaning of 'gas', as in old German, modern Dutch, and Danish.

  1. derived from *dampaz✻
  2. derived from dampen
  3. inherited from dampen — “to stifle; suffocate”
  4. compounded as flashdamp — “flash + damp”

Definitions

  1. A mixture of methane, carbon dioxide, and nitrogen that is found in mines, and ignited…

    A mixture of methane, carbon dioxide, and nitrogen that is found in mines, and ignited quickly within a safety lamp, but that is then extinguished quickly due to the exhaust products of the flame. Flashdamp can be heavier than air (called heavy flashdamp) or lighter than air (called light flashdamp), depending on the proportion of carbon dioxide.

    • A flashdamp mixture is often lighter than air and presents the peculiarity strange to mines, of extinguishing a light at the roof.
    • For illustration, let it be required to calculate the specific gravity of flashdamp (undiluted mixture of methane and carbon dioxide) directly from the specific gravities of these gases[…]

The neighborhood

Vish — recursive loop

No curated loop yet for flashdamp. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA