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antimonial powder
(medicine) A preparation of one part oxide of antimony and two parts phosphate of calcium.
lycopodium powder
A fine powder or dust composed of the spores of lycopodium and related plants. It is highly inflammable, and is sometimes used in the manufacture of fireworks, and the artificial representation of lightning.
sympathetic powder
(alchemy, historical) A kind of powder supposed to be able to cure a wound if applied to the weapon that inflicted it, or to a portion of the bloodied clothes of the wounded person.
tooth powder
A powder for cleaning the teeth; a dentifrice.
talcum powders
plural of talcum powder
powder down
A special type of down that occurs in a few groups of apparently unrelated birds. In some species, the tips of the barbules on the feathers disintegrate, forming fine particles of keratin; in others, powder grains come from cells that surround the barbules of growing feathers.
Goulard's powder
powder of sympathy
(historical) A powder applied to the weapon that caused a wound in the hope of healing the injury it had made.
powders of sympathy
putty powder
An oxide of tin, or of tin and lead in various proportions, used in polishing glass, metal, precious stones, etc.
