Category: P
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Physical mixture
A physical combination of matter in any proportions.
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Physical change
A change in the form or physical properties of a substance, without a chemical reaction or the creation of a new substance.
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Photothermolysis
Process that turns the light from the laser into heat.
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Photoinitiator
A chemical that initiates the polymerization reaction.
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Photoepilation
Permanent hair removal treatment that uses intense light to destroy the growth cells of the hair follicles.
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Phenolic disinfectants
Powerful tuberculocidal disinfectants. They are a form of formaldehyde, have a very high pH, and can damage the skin and eyes.
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Peroneous longus
Muscle that covers the outer side of the calf and inverts the foot and turns it outward.
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Peroneous brevis
Muscle that originates on the lower surface of the fibula and bends the foot down and out.
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Permanent waving
A two-step process whereby the hair undergoes a physical change caused by wrapping the hair on perm rods, and then the hair undergoes a chemical change caused by the application of permanent waving solution and neutralizer.
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Permanent hair colors
Lighten and deposit color at the same time and in a single process because they are more alkaline than no-lift deposit-only colors and are usually mixed with a higher-volume developer.