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phase transfer catalysis
(chemistry) A process in which the rate of a reaction in a heterogeneous two-phase system is enhanced by the addition of a substance that transfers one of the reactants across the interface between the two phases.
phase contrast microscope
A microscope that uses the change of phase when light is transmitted or reflected from a transparent or reflective specimen to form an image; used especially to study living cells.
phase-locked loop
(electronics) an electronic circuit used to lock an oscillator in phase with an arbitrary input signal
phase contrast microscopy
A form of light microscopy in which small differences in refractive index of a transparent specimen are converted into amplitude (contrast) differences in the final image.
phase-locked loops
phase contrast microscopes
Five Phases
luteal phases
plural of luteal phase
Chevrel phases
plural of Chevrel phase
stationary phases
plural of stationary phase