phi

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See also: Phi, PHI, phỉ, phị, and -phi

English[edit]

Wikipedia has an article on:

Wikipedia

Ancient Greek Alphabet

upsilon
Greek letter uppercase Phi.svg Greek lc phi.png
chi
Φ φ
Ancient Greek: φεῖ
Wikipedia article on phi

Etymology[edit]

From Late Latin phi, from Ancient Greek ϕεῖ ‎(ϕeî).[1]

Pronunciation[edit]

Noun[edit]

phi ‎(plural phis)

  1. Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph".
  2. (mathematics) The golden ratio.
  3. A visual illusion whereby a sequential pattern of lights produces a false sense of motion.
    • 1963, Psychology Through Experiment (George Humphrey, ‎Jaroslav Antonio Deutsch), page 90:
      [] tolerance (Frenkel-Brunswik 1949) for it showed that those persons with the strongest defences against internal conflict, i.e. obsessionals and conversion hysterics, were those least able to perceive the reality-conflicting phenomenon of phi.
    • 2007, Wayne Weiten, Psychology: Themes and Variations: Themes And Variations, page 138:
      The illusion of movement in a highway construction sign is an instance of the phi phenomenon, which is also at work in motion pictures and television.
    • 2013, Francis Glebas, The Animator's Eye: Composition and Design, page 66:
      Is it the phi phenomenon or the persistence of vision? Originally, the illusion of motion that movies excel at was thought to be the effect of the persistence of vision.

Translations[edit]

See also[edit]

Anagrams[edit]

References[edit]

  1. ^ Oxford English Dictionary, 3rd ed. "phi, n." Oxford University Press (Oxford), 2005.

French[edit]

Noun[edit]

phi m ‎(plural phi)

  1. phi (Greek letter)

External links[edit]


Italian[edit]

Noun[edit]

Italian Wikipedia has an article on:

Wikipedia it

phi m ‎(invariable)

  1. phi (Greek letter)

Portuguese[edit]

Noun[edit]

phi m (plural phi)

  1. Obsolete spelling of fi (used in Portugal until September 1911 and died out in Brazil during the 1920s).

Vietnamese[edit]

Etymology 1[edit]

Sino-Vietnamese word from (“to fly; to gallop”)

Pronunciation 1[edit]

Verb[edit]

phi

  1. (of horses) gallop

Etymology 2[edit]

Sino-Vietnamese word from (“not”)

Pronunciation 2[edit]

Definitions[edit]

  1. Africa
  2. prefix

Compounds[edit]