dry powder

noun

A powder found in a fire extinguisher that is expelled to smother the fire (in contrast with liquid types of extinguisher).

“Private equity firms were sitting on more than $1 trillion in dry powder at the end of 2011.”

Meanings

noundry powder (countable and uncountable, plural dry powders)

plural dry powders

  1. countableuncountableA powder found in a fire extinguisher that is expelled to smother the fire (in contrast with liquid types of extinguisher).
  2. countableuncountableA powder found in an inhaler that delivers a bronchodilator for antiasthmatic or antiemphysemic purposes (indications).
  3. countableuncountablebusinessCash (or cash-like securities) kept in reserve in case of need.

    Private equity firms were sitting on more than $1 trillion in dry powder at the end of 2011.

  4. countableuncountableUsed other than figuratively or idiomatically: see dry, powder; especially, gunpowder kept dry to keep it from spoiling before use.

Origin

The financial sense comes by metaphor from the sense of gunpowder kept dry to allow rapid loading of a firearm, as in the expression keep one's powder dry.

Full word history & related roots →

Translations

German Löschpulver
  • Löschpulverpowder from a fire extinguisher
Cite this entry
APA

dry powder. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/dry%20powder

MLA

“dry powder.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/dry%20powder. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “dry powder,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/dry%20powder.

Source: dry powder on Wiktionary, CC BY-SA 4.0.