Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. The 23rd letter of the Greek alphabet. See Table at alphabet.
- n. Parapsychological phenomena or abilities considered as a group.
- abbr. pounds per square inch
Century Dictionary and Cyclopedia
- n. A Greek letter,
Ψ ,ψ . It belongs to the Ionic alphabet, and stands for ps or phs. The character may be a modification ofΦ ,φ .
Wiktionary
- n. The twenty-third letter of Classical and Modern Greek and the twenty-fourth letter of Old and Ancient Greek.
- n. A form of psychic energy.
- Pounds per square inch (an imperial unit of pressure)
WordNet 3.0
- n. the 23rd letter of the Greek alphabet
- n. a unit of pressure
Etymologies
- Middle English, from Late Greek, from Greek psei.Shortening and alteration of parapsychological.
Examples
“In spinor form the wave-field is psi = (psi_A, psi_ {A’}).”
“The term psi was coined as a neutral term for psychic phenomena in 1942 by British psychologist Robert Thouless.”
“Virtually all meditative traditions take for granted that what we call psi is simply the initial stages of awareness of deeper levels of reality.”
“Entangled Minds and Conscious Universe, Radin gives lectures and presentations around the world on his studies in what he calls psi (psychic) phenomena.”
“They need to be though: even the most ardent believers in "psi" (the Greek letter is used as a blanket term to cover psychic phenomena) accept that evidence in favour of it is made up of small anomalies that are often difficult to identify with any certainty.”
“With such a little tank (20oz.), 3000 – 4000 psi is required to inflate so many tires, namely 40 road tires from empty to 120 psi with a single tank.”
Technical FAQ with Lennard Zinn: Blowing up tires, taking them off, and more
“Or posts that equated belief in psi phenomena with superstition, and I replied with citations to replicated scientific studies showing that psi phenomena are real.”
A Childish Question About Immigration, Bryan Caplan | EconLog | Library of Economics and Liberty
“We are motivated by psychological intentions and organic needs, so psi, which is mediated through conscious and unconscious psychological drives, strongly reflects those needs.”
“Some people today still use occult terms like “astral body” when referring to psi, but most scientifically minded researchers regard occult lore only as metaphors.”
“And telepathy or perception goes out of kilter first because the psi is a very delicate factor.”
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