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Topics: Psi (Cyrillic) Letter Russian 1708 Early Derived Greek Cyrillic...

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PSIPounds-force per Square Inch PSI is a non- SI unit of pressure. For technical accuracy, psi must be expressed as psig (pounds-force per square inch gauge) or psia (pounds-force per square inch absolute; that is, gauge pressure plus sea level atmospheric p PsiPsi (Ψ ψ) is a letter of the Greek alphabet. See Psi (letter). It has come to be a symbol for psychology-related topics, and has also been used as a shorthand for supposed psychic abilities or powers. See also PSI (pounds per square inch). Psi was PsilanthropismIn Christianity, Psilanthropism or Socianism is a Christological view that denies the divine nature of Jesus Christ. The presumed etymology of "psilanthropism" stems from the Greek psilo (merely, only) and anthropos (man, human being). The presumed etymol PsilocybinPsilocybin 4-phosphoryloxy-N,N-di methyl tryptamine is a psychedelic alkaloid of the tryptamine family. It is present in many species of fungi, notably Psilocybe cubensis and Psilocybe semilanceata (Liberty Caps). Psilocybin-containing mushrooms are commo Psion OrganiserThe Psion Organiser was the brand name of a range of personal digital assistants developed by the British company Psion from 1984. Early Psion Organisers, the first version and the Organiser II, had a characteristic hard plastic sliding cover protecting a PsionPsion PLC is the British company mostly known for developing the pioneering Psion Organiser as well as a whole range of more advanced, clamshell-design Personal Digital Assistants: Psion 3 Psion Siena Psion 5 Psion 7 Psion Netbook, Netbook Pro Psion Revo Psilocybe cubensis Psittaciformes Psilotophyta Psittacosis Psilophthalmus Psi (letter) Psilocybe Psionicist Psi Upsilon