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PSI ,
Psi , or
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Psi , PSI or Ψ may refer to:
Alphabetic letters
Psi (Greek) (Ψ or ψ), the twenty-third letter of the Greek alphabet
Psi (Cyrillic) , letter of the early Cyrillic alphabet, adopted from Greek
Arts and entertainment
Comics
Music
Other uses in arts and entertainment
Organizations
Government and politics
Other organizations
Paul Scherrer Institute , research institute in Villigen, Switzerland
Pechersk School International , Kyiv, Ukraine
Physics Society of Iran
Planetary Science Institute , Tucson, Arizona, US
Poetry Slam, Inc. , promoting poetry
Policy Studies Institute , UK research organization
Population Services International , global health organization
Professional Skills Institute , technical school in Maumee, Ohio, US
Prudential Securities Incorporated , financial services company
PSI Seminars , on awareness training
Public Services International , trades unions federation
Statisticians in the Pharmaceutical Industry
Parapsychology
Science, technology, and mathematics
Biology and medicine
Computing
Economics
Engineering
Geography
Mathematics
Physics and chemistry
Psychology
Psychology or psychologist, denoted Ψ, used in the logo of various psychological associations
Psi Chi , the National Honor Society in psychology
Psi-theory , theory about the human mind, a cognitive architecture
Psychiatric Solutions, Inc. , corporation that owns psychiatric hospitals
Other uses
See also
Topics referred to by the same term