noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ˈfɒksfaɪə/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/ˈfɑksˌfaɪ(ə)ɹ/
CMU ARPABET:F AA1 K S F AY2 R
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:F AA1 K S F AY2 ER0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Bioluminescence created by some types of fungus, particularly those growing on rotting wood.
Definition source: English Wiktionary via Wiktextract
Usage: US, uncountable
Topics: biology, mycology, natural-sciences
No example sentence was provided for this meaning.
Definition source: English Wiktionary via Wiktextract
Usage: broadly, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
Etymology
Possibly from fox + fire, though the semantic connection is unclear. Alternatively, the first element may be ultimately from Old French fols (“false”), or the term may derive by folk etymology from phosphor.
Across languages
Translations
5 source translations are retained for this English entry.
Arabic:
فوكسفيري
— bioluminescence created by some types of fungus
Finnish:
peikonkulta
— bioluminescence created by some types of fungus
Hebrew:
אש השועל
— bioluminescence created by some types of fungus
Japanese:
狐火
(kitsunebi)
— bioluminescence created by some types of fungus
Tamil:
பாக்ஸ்ஃபையர்
(pāksfaiyar)
— bioluminescence created by some types of fungus