Hfo

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Initialism of heavy fuel oil. abbreviation, alt-of, countable, initialism, uncountable
  2. 2
    Initialism of hydrofluoroolefin. abbreviation, alt-of, countable, initialism, uncountable
  3. 3
    Initialism of high-frequency oscillation. abbreviation, alt-of, countable, initialism, uncountable
  4. 4
    Initialism of hands-free orgasm. abbreviation, alt-of, countable, initialism, uncountable

Synonyms

All synonyms
hydrofluoroolefin

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