Glossary P

Petit mal seizure is a term which literall means "little bad" seizure that causes an altered state of consciousness, but lacks the violent physical loss of control seen during the Grand mal seizure.

Petites perceptions is a term which according to Leibniz refer to a perception that occurs below the level of awareness because only a few monads are involved.

Peyote is a type of a Cactus plant, the top of which called a "button" is dried and ingested for its hallucinogenic properties

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Peyronie’s disease is defined as the abnormal calcifications in the penis, which may cause painful curvature, usually making sexual intercourse impossible.

PGO wave refers to pattern of high-amplitude electrical potentials that occurs first in the Pons, then in the Lateral geniculate, and finally in the Occipital cortex

pH is defined as a measure of the acidity of a solution; calculated as the negative log10 of the [H+] in which 7 is neutral; values that are >7 are basic and <7 are acidic.

Phagocytosis is the process by which Phagocytes ingest and attempt to eliminate a foreign invader; the process of engulfing and killing foreign particles. Moreover, Phagocytosis is a process by which immune cells, such as Macrophages destroy germs or viruses by engulfing them and breaking them down.

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Phallic Stage refers to the third stage in Freud's developmental theory, during which the Oedipal crisis takes place and the superego develops.

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