phi

Contents

EnglishEdit

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

EtymologyEdit

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

PronunciationEdit

NounEdit

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.

TranslationsEdit

See alsoEdit

AnagramsEdit

ReferencesEdit

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

FrenchEdit

NounEdit

phi m ‎(plural phi)

  1. phi (Greek letter)

External linksEdit


ItalianEdit

NounEdit

Italian Wikipedia has an article on:

Wikipedia it

phi m ‎(invariable)

  1. phi (Greek letter)

PortugueseEdit

NounEdit

phi m (plural phi)

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

VietnameseEdit

Etymology 1Edit

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

Pronunciation 1Edit

VerbEdit

phi

  1. (of horses) gallop

Etymology 2Edit

Sino-Vietnamese, from (“not”)

Pronunciation 2Edit

DefinitionsEdit

  1. Africa
  2. prefix

CompoundsEdit

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