phi

Definitions

1. Abbreviation of Philadelphia.
   abbreviation, alt-of
2. Initialism of protected health information.
   abbreviation, alt-of, initialism, uncountable
3. ISO 639-2 & ISO 639-5 language code for Philippine languages
4. Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph".
5. The golden ratio.
6. Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph"
7. The 21st letter of the Greek alphabet. See Table at alphabet.
8. A visual illusion whereby a sequential pattern of lights produces a false sense of motion.
9. The golden ratio
10. the 21st letter of the Greek alphabet (Φ, φ).
11. A visual illusion whereby a sequential pattern of lights produces a false sense of motion
12. (Letters of the Alphabet (Foreign)) the 21st letter in the Greek alphabet (Φ, φ), a consonant, transliterated as ph or f
    ph

Equivalents

Examples

“[…] 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.”

“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.”

“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.”

CEFR level