dry powder

名词 n.
中文释义

英文释义

名词 n.
  1. A powder found in a fire extinguisher that is expelled to smother the fire (in contrast with liquid types of extinguisher). countable,uncountable
  2. A powder found in an inhaler that delivers a bronchodilator for antiasthmatic or antiemphysemic purposes (indications). countable,uncountable
  3. Cash (or cash-like securities) kept in reserve in case of need. countable,uncountable
    — Private equity firms were sitting on more than $1 trillion in dry powder at the end of 2011.
  4. Used other than figuratively or idiomatically: see dry, powder; especially, gunpowder kept dry to keep it from spoiling before use. countable,uncountable

词形变化

dry powders plural

词源

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.
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