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单词 damp off
释义

damp off


damp

D0018000 (dămp)adj. damp·er, damp·est 1. Slightly wet: a damp sponge.2. Humid: damp air.3. Archaic Dejected; depressed.n.1. a. Moisture in the air; humidity: Come in out of the damp.b. Moisture that lies or has condensed on something: "I saw the damp lying on the bare hedges and spare grass" (Charles Dickens).2. Foul or poisonous gas that sometimes pollutes the air in coal mines.3. Archaic a. Lowness of spirits; depression: "An angry or sorrowful [countenance] throws a sudden damp upon me" (David Hume).b. A restraint or check; a discouragement: "The issue of arms was so slow as to throw a great damp upon volunteering" (James Franck Bright).tr.v. damped, damp·ing, damps 1. To make damp or moist; moisten.2. To suppress or extinguish (a fire) by reducing or cutting off air.3. To restrain or check; discourage: news that damped our enthusiasm.4. Music To slow or stop the vibrations of (the strings of a keyboard instrument) with a damper.5. Physics To decrease the amplitude of (an oscillating system).Phrasal Verb: damp off Botany To be affected by damping off.
[Middle English, poison gas, perhaps from Middle Dutch, vapor.]
damp′ish adj.damp′ly adv.damp′ness n.

damp off

vb (Plant Pathology) (intr, adverb) (of plants, seedlings, shoots, etc) to be affected by damping off

damp off


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 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
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