Category: P
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Physiological chemistry
The subdivision of biochemistry concerned with chemical processes in living organisms.
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Physical chemistry
Theoretical chemistry; the chemistry concerned with fundamental laws underlying chemical changes and the mathematical expression of these laws.
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Pharmaceutical chemistry
The chemistry of medicines, their composition, synthesis, analysis, storage, and actions.
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Pathological chemistry
The study of chemical changes induced by disease processes (e.g., changes in the chemistry of organs and tissues, blood, secretions, or excretions).
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Peremptory challenge
A challenge to remove a juror from a prospective jury without cause.
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Postmortem cesarean section
Surgical removal of the fetus from the uterus immediately after maternal death.
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Psychocortical center
One of the centers of the cerebral cortex concerned with voluntary muscular contractions.
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Pneumotaxic center
The center in the pons that rhythmically inhibits inspiration.
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Preseptal cellulitis
Soft tissue infection limited to the tissues anterior to the orbital septum.
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Pus cell
A leukocyte present in pus. Cells of this type are often degenerated or necrotic.