Phinary

//ˈfaɪnəɹi// noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    A numeral system that uses the golden ratio as its base. colloquial, uncountable

Etymology

Blend of phi + binary, in reference to the Greek letter phi (φ).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.