Pyrocephalus
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～ a genus of Tyrannidae
pyrochemical process
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～ processes for chemical reactions at high temperatures
pyrochemistry
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～ processes for chemical reactions at high temperatures
pyroelectricity
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～ generation of an electric charge on certain crystals (such as tourmaline) as a result of a change in temperature
pyrogallic acid
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～ a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer
pyrogallol
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～ a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer
pyrogen
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～ any substance that can cause a rise in body temperature
pyrogen
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～ any substance characterized by its great flammability
pyrograph
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～ a design produced by pyrography
pyrographer
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～ an artist who practices pyrography
pyrography
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～ the act of producing drawings on wood or leather by using heated tools or a fine flame
Pyrola elliptica
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～ North American evergreen with small pinkish bell-shaped flowers and oblong leaves used formerly for shinplasters
pyrola
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～ any of several evergreen perennials of the genus Pyrola
Pyrola minor
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～ the common wintergreen having many-flowered racemes of pink-tinged white flowers; Europe and North America
Pyrola americana
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～ evergreen of eastern North America with leathery leaves and numerous white flowers
Pyrolaceae
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～ evergreen herbs of temperate regions: genera Pyrola, Chimaphila, Moneses, Orthilia
pyrolatry
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～ the worship of fire
pyroligneous acid
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～ a red-brown liquid formed in distillation of wood which contains acetic acid, methanol, acetone, wood oils, and tars
pyrolusite
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～ a mineral consisting of manganese dioxide; an important source of manganese
pyrolysis
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～ transformation of a substance produced by the action of heat