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Columbia Encyclopedia

Columbia Electronic Encyclopedia, published by Columbia University Press
The Columbia Electronic Encyclopedia contains entries on people, places, events, historical facts and terms, with bibliographies for further reading.
On this page: Protozoa to Ptolemaic system.
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Title Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9
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Protozoa (protozoa)
protozoan (protozoa)
Provençal literature (literature, France)
Provence (region, former province, France)
proverb (in literature)
Proverbs (in the Old Testament)
Providence (city, Rhode Island)
Provincetown (city, Massachusetts)
Provincetown Players (organization, United States)
Provins (city, France)
Provisions of Oxford (government, history, England)
Provo (city, Utah)
Provo (river, United States)
Prudhoe Bay (body of water, Alaska)
prune (fruit)
pruning (in agriculture)
Prussia (former state, former kingdom, Germany)
Prussian blue (in art)
Prut (river, Ukraine)
Przemyśl (city, Poland)
Psalms (in the Old Testament)
Pseudepigrapha (in the Bible)
Pseudo-Philo (in Judaism, literature)
pseudocyesis (condition)
pseudonym (in literature)
psilocybin (drug)
Psilotophyta (division)
psittacosis (disease)
Pskov (city, Russia)
psoriasis (disease)
Psyche (in Greek Mythology)
psychiatry (in psychology)
psychoanalysis (in psychology)
psycholinguistics (in psychology, linguistics)
psychological test (in psychology)
psychology (in psychology, science)
psychopharmacology (in psychology, pharmacology)
psychosis (condition)
psychosomatic medicine (in psychology, medicine)
psychotherapy (in psychology)
psychrometer (instrument)
Pt (symbol)
Ptah (ancient religion, ancient Egypt)
pterodactyl (reptile)
pterosaur (reptile)
Ptolemaic system (in astronomy)