powder

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Related to powdery: powdery mildew

powder

 [pow´der]
an aggregation of particles, as that obtained by grinding or rubbing a solid.

pow·der

(pow'dĕr),
1. A dry mass of minute separate particles of any substance.
2. In pharmaceutics, a homogeneous dispersion of finely divided, relatively dry, particulate matter consisting of one or more substances; the degree of fineness of a pow'der is related to passage of the material through standard sieves.
3. A single dose of a powdered drug, enclosed in an envelope of folded paper.
4. To reduce a solid substance to a state of fine division.
[Fr. poudre; L. pulvis]

powder

(pou′dər)
n.
1. A substance consisting of ground, pulverized, or otherwise finely dispersed solid particles.
2. Any of various preparations in the form of powder, as certain cosmetics and medicines.

pow′der·er n.

powder

the dried product of an extraction process in which a substance is first mixed with a solvent such as alcohol or water. Then, the solvent is removed completely. The dry solid that remains either is already in powder form or may be ground into it.

powder

Chinese medicine
A general term for ground herbs and formulas used in Chinese herbal medicine to prepare in capsules, infusions, liquors, porridges, ointments, pastes and pills; powders are less concentrated than decoctions, gentler, are best suited for chronic conditions.

powder

Drug slang A pulverized abuse substance–eg, heroin, amphetamine, cocaine Vox populi A pulverized material. See Antler velvet powder, Dover's powder, Fluticasone propionate inhalation powder, Inheritance powder, James Fever powder, Talcum powder.

pow·der

(pow'dĕr)
1. A dry mass of minute separate particles of any substance.
2. pharmaceutics A homogeneous dispersion of finely divided, relatively dry particulate matter consisting of one or more substances.
3. A single dose of a powdered drug, enclosed in an envelope of folded paper.
4. To reduce a solid substance to a state of very fine division.
[Fr. poudre; L. pulvis]

powder,

n in homeopathy, a dosage form, often lactose, that has had a small amount of homeopathic remedy poured on it. This powder can then be consumed by the patient.

pow·der

(pow'dĕr)
1. A dry mass of minute separate particles of any substance.
2. In pharmaceutics, a homogeneous dispersion of finely divided, relatively dry, particulate matter consisting of one or more substances.
[Fr. poudre; L. pulvis]

powder

an aggregation of particles obtained by grinding or triturating a solid.

dusting powder
a fine powder used as a talc substitute.
glove powder
sterile and special grind for powdering surgical gloves.
References in periodicals archive ?
Powdery mildew severity was evaluated on a whole-plot basis once each spring between Feekcs growth stage 8 and 10.
All the recommended package of practices was applied except protection for control of powdery mildew under natural filed condition.
2 million acres of wine grapes in 2014, primarily to control powdery mildew, bunch rots such as Botrytis and sour rot, and canker diseases such as Eutypa.
Keywords: Wheat ear; Powdery mildew; Disease severities; Hyperspectral imaging
Not preferred by squash bugs but susceptible to vine borers and powdery mildew, delicata squash (C.
The objectives of this study were (i) to estimate the DFE for the multiple pathosystem of barley brown spot and powdery mildew using the critical-point and experimental parcel models relating the disease intensity to the grain yield, and (ii) to determine the EDT using the model-generated damage coefficient from the DFE.
Asters should also be sprayed at the same time as roses because powdery mildews are found on the plant surface and are easily targeted.
John Stephenson, owner of Bolton Spring Farm, said he has sprayed his pumpkin plants once a week with a fungicide and he still has powdery mildew.
The Hosokawa Turbulizer offers effective fine layer coating and dispersing of liquids on solids on a wide range of products as well as heating and cooling of powdery products, continuous reacting of gasses with powders and fine agglomeration.
The first fragrant collection is inspired by the delicious, powdery scent of rose and violet petals, delicately draped in sugar.
Unfortunately this group is the most susceptible of the autumn flowering asters to powdery mildew disease which can spoil the foliage with a white fungal bloom, eventually causing leaves to turn black and fall.
For the past 8 y, we have observed increases in the incidence of a naturally occurring powdery mildew fungus on garlic mustard in southwestern Ohio that we initially identified as Erysiphe cruciferarum Opiz ex.