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damp down

1. To moisten something. A noun or pronoun can be used between "damp" and "down." I have to damp down my hair before combing it, or else it just sticks straight up.
2. To make a fire or flame less intense. A noun or pronoun can be used between "damp" and "down." The room's getting too hot now, so damp down the fire.
See also: damp, down

damp off

To die after overexposure to water. Typically used in reference to plants and seeds. I'm worried that days of torrential rain will cause the flowers I just planted to damp off.
See also: damp, off

damp squib

Someone or something that disappoints or does not meet expectations. The film got a lot of hype, but I thought it was a bit of a damp squib.
See also: damp, squib
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

damp off

[for seedlings] to die from too much water. All the new plants damped off, and we had to buy some from the nursery. The little seedlings damped off and withered away.
See also: damp, off

damp something down

1. Lit. to make something damp. Damp the clothes down before you iron them, Please damp down the clothes first.
2. Fig. to reduce the intensity of a flame, usually by cutting down on the air supply, as with a damper. Please damp the woodstove down. Damp down the air supply or you are going to end up with a raging inferno.
See also: damp, down
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

a damp squib

mainly BRITISH
COMMON A damp squib is something which is much less impressive or exciting than it was expected to be. As a rebellion, it was something of a damp squib. The whole campaign turned out to be a damp squib. Note: A squib is a small firework. A damp squib would not go off properly, and so it would be a disappointment.
See also: damp, squib
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

a damp squib

an unsuccessful attempt to impress; an anticlimax.
This expression stems from the idea that a squib, a type of small firework, will not have the desired explosive effect if it is damp.
See also: damp, squib
Farlex Partner Idioms Dictionary © Farlex 2017

a damp ˈsquib

(British English, informal) an event, experience, etc. that is expected to be interesting or exciting, but is in fact boring or ordinary: In the end, the party turned out to be rather a damp squib.
A squib is a type of small firework. If it is damp, it will not burn properly.
See also: damp, squib
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
Some oscillations due to Mode II fracture of concrete are also observed in the stress-displacement curve of the cases with the stiffness proportional damping ratio [[xi].sub.[beta]] lower than 0.05%, but the oscillations were effectively damped out in the cases with stiffness proportional damping ratio equal to or larger than 0.5%.
In the aforementioned FE investigations it is found that the mass proportional Rayleigh damping [[xi].sub.[alpha]]], is not needed to damp out the oscillations due to Mode I fracture of concrete due to unnoticeable oscillation in simulations under Mode I loading and the inherent presence of numerical damping in HHT-[alpha] method, and it is ineffective to damp out the oscillations as a result of Mode II fracture of concrete.
The aforementioned studies indicate that the mass proportional damping coefficient a does not have any negative effect on the accuracy of the simulation results but is not effective to damp out the numerical oscillations induced by Mode II loading, whose mechanical response belongs to high-frequency domain.
It is for this reason that it could be concluded that the mass proportional damping ratio should be used to damp out the oscillations in the simulations of specimens loaded under Mode I loading mode while the stiffness proportional damping ratio should be used to damp out the oscillations in the simulations of specimens loaded under Mode II loading mode.
Traditionally, case damps have applied pressure to cabinet boxes either hydraulically or, more recently, pneumatically.
And although most high-end case damps were hydraulic in the beginning, according to Ortmayer, they are expensive to maintain and are not necessarily competitive in price to other options on the market.
Those interviewed claim this option is cleaner than hydraulic methods, but the air pressure of pneumatic case damps is known to be inconsistent.
One option to combat the downside of hydraulic and pneumatic case damps, according to Keilen, is the use of electronically controlled damps.
"We have seen case damps used primarily in the industrial, or office furniture sectors, for assembling the pedestals of the desk or whatnot," Stornetta says.
Wells, too, says he has seen case damps used for alternative applications.